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How to Choose the Best AI Agent Framework in 2024: A Comprehensive Comparison

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How to Choose the Best AI Agent Framework in 2024: A Comprehensive Comparison

by Gonzalo Wangüemert Villalba

4 September 2025

Introduction The open-source AI ecosystem reached a turning point in August 2025 when Elon Musk’s company xAI released Grok 2.5 and, almost simultaneously, OpenAI launched two new models under the names GPT-OSS-20B and GPT-OSS-120B. While both announcements signalled a commitment to transparency and broader accessibility, the details of these releases highlight strikingly different approaches to what open AI should mean. This article explores the architecture, accessibility, performance benchmarks, regulatory compliance and wider industry impact of these three models. The aim is to clarify whether xAI’s Grok or OpenAI’s GPT-OSS family currently offers more value for developers, businesses and regulators in Europe and beyond. What Was Released Grok 2.5, described by xAI as a 270 billion parameter model, was made available through the release of its weights and tokenizer. These files amount to roughly half a terabyte and were published on Hugging Face. Yet the release lacks critical elements such as training code, detailed architectural notes or dataset documentation. Most importantly, Grok 2.5 comes with a bespoke licence drafted by xAI that has not yet been clearly scrutinised by legal or open-source communities. Analysts have noted that its terms could be revocable or carry restrictions that prevent the model from being considered genuinely open source. Elon Musk promised on social media that Grok 3 would be published in the same manner within six months, suggesting this is just the beginning of a broader strategy by xAI to join the open-source race. By contrast, OpenAI unveiled GPT-OSS-20B and GPT-OSS-120B on 5 August 2025 with a far more comprehensive package. The models were released under the widely recognised Apache 2.0 licence, which is permissive, business-friendly and in line with requirements of the European Union’s AI Act. OpenAI did not only share the weights but also architectural details, training methodology, evaluation benchmarks, code samples and usage guidelines. This represents one of the most transparent releases ever made by the company, which historically faced criticism for keeping its frontier models proprietary. Architectural Approach The architectural differences between these models reveal much about their intended use. Grok 2.5 is a dense transformer with all 270 billion parameters engaged in computation. Without detailed documentation, it is unclear how efficiently it handles scaling or what kinds of attention mechanisms are employed. Meanwhile, GPT-OSS-20B and GPT-OSS-120B make use of a Mixture-of-Experts design. In practice this means that although the models contain 21 and 117 billion parameters respectively, only a small subset of those parameters are activated for each token. GPT-OSS-20B activates 3.6 billion and GPT-OSS-120B activates just over 5 billion. This architecture leads to far greater efficiency, allowing the smaller of the two to run comfortably on devices with only 16 gigabytes of memory, including Snapdragon laptops and consumer-grade graphics cards. The larger model requires 80 gigabytes of GPU memory, placing it in the range of high-end professional hardware, yet still far more efficient than a dense model of similar size. This is a deliberate choice by OpenAI to ensure that open-weight models are not only theoretically available but practically usable. Documentation and Transparency The difference in documentation further separates the two releases. OpenAI’s GPT-OSS models include explanations of their sparse attention layers, grouped multi-query attention, and support for extended context lengths up to 128,000 tokens. These details allow independent researchers to understand, test and even modify the architecture. By contrast, Grok 2.5 offers little more than its weight files and tokenizer, making it effectively a black box. From a developer’s perspective this is crucial: having access to weights without knowing how the system was trained or structured limits reproducibility and hinders adaptation. Transparency also affects regulatory compliance and community trust, making OpenAI’s approach significantly more robust. Performance and Benchmarks Benchmark performance is another area where GPT-OSS models shine. According to OpenAI’s technical documentation and independent testing, GPT-OSS-120B rivals or exceeds the reasoning ability of the company’s o4-mini model, while GPT-OSS-20B achieves parity with the o3-mini. On benchmarks such as MMLU, Codeforces, HealthBench and the AIME mathematics tests from 2024 and 2025, the models perform strongly, especially considering their efficient architecture. GPT-OSS-20B in particular impressed researchers by outperforming much larger competitors such as Qwen3-32B on certain coding and reasoning tasks, despite using less energy and memory. Academic studies published on arXiv in August 2025 highlighted that the model achieved nearly 32 per cent higher throughput and more than 25 per cent lower energy consumption per 1,000 tokens than rival models. Interestingly, one paper noted that GPT-OSS-20B outperformed its larger sibling GPT-OSS-120B on some human evaluation benchmarks, suggesting that sparse scaling does not always correlate linearly with capability. In terms of safety and robustness, the GPT-OSS models again appear carefully designed. They perform comparably to o4-mini on jailbreak resistance and bias testing, though they display higher hallucination rates in simple factual question-answering tasks. This transparency allows researchers to target weaknesses directly, which is part of the value of an open-weight release. Grok 2.5, however, lacks publicly available benchmarks altogether. Without independent testing, its actual capabilities remain uncertain, leaving the community with only Musk’s promotional statements to go by. Regulatory Compliance Regulatory compliance is a particularly important issue for organisations in Europe under the EU AI Act. The legislation requires general-purpose AI models to be released under genuinely open licences, accompanied by detailed technical documentation, information on training and testing datasets, and usage reporting. For models that exceed systemic risk thresholds, such as those trained with more than 10²⁵ floating point operations, further obligations apply, including risk assessment and registration. Grok 2.5, by virtue of its vague licence and lack of documentation, appears non-compliant on several counts. Unless xAI publishes more details or adapts its licensing, European businesses may find it difficult or legally risky to adopt Grok in their workflows. GPT-OSS-20B and 120B, by contrast, seem carefully aligned with the requirements of the AI Act. Their Apache 2.0 licence is recognised under the Act, their documentation meets transparency demands, and OpenAI has signalled a commitment to provide usage reporting. From a regulatory standpoint, OpenAI’s releases are safer bets for integration within the UK and EU. Community Reception The reception from the AI community reflects these differences. Developers welcomed OpenAI’s move as a long-awaited recognition of the open-source movement, especially after years of criticism that the company had become overly protective of its models. Some users, however, expressed frustration with the mixture-of-experts design, reporting that it can lead to repetitive tool-calling behaviours and less engaging conversational output. Yet most acknowledged that for tasks requiring structured reasoning, coding or mathematical precision, the GPT-OSS family performs exceptionally well. Grok 2.5’s release was greeted with more scepticism. While some praised Musk for at least releasing weights, others argued that without a proper licence or documentation it was little more than a symbolic gesture designed to signal openness while avoiding true transparency. Strategic Implications The strategic motivations behind these releases are also worth considering. For xAI, releasing Grok 2.5 may be less about immediate usability and more about positioning in the competitive AI landscape, particularly against Chinese developers and American rivals. For OpenAI, the move appears to be a balancing act: maintaining leadership in proprietary frontier models like GPT-5 while offering credible open-weight alternatives that address regulatory scrutiny and community pressure. This dual strategy could prove effective, enabling the company to dominate both commercial and open-source markets. Conclusion Ultimately, the comparison between Grok 2.5 and GPT-OSS-20B and 120B is not merely technical but philosophical. xAI’s release demonstrates a willingness to participate in the open-source movement but stops short of true openness. OpenAI, on the other hand, has set a new standard for what open-weight releases should look like in 2025: efficient architectures, extensive documentation, clear licensing, strong benchmark performance and regulatory compliance. For European businesses and policymakers evaluating open-source AI options, GPT-OSS currently represents the more practical, compliant and capable choice.  In conclusion, while both xAI and OpenAI contributed to the momentum of open-source AI in August 2025, the details reveal that not all openness is created equal. Grok 2.5 stands as an important symbolic release, but OpenAI’s GPT-OSS family sets the benchmark for practical usability, compliance with the EU AI Act, and genuine transparency.

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Base Fixes Transaction Delays After Config Error, Preserves L2 Lead

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Crypto Breaking News

Base, Coinbase’s Ethereum layer-2 network, faced a weekend slowdown caused by a configuration error in a recent transaction-propagation change. While users reported elevated drops and longer waits for on-chain inclusion, blocks continued to be produced and the network did not experience a full outage. In a Wednesday post on X, Base explained that the modification to how transactions were propagated caused the block builder to repeatedly fetch transactions that could not be executed as base fees rose rapidly. The team rolled back the change and said stability has been restored, while outlining plans for longer-term fixes to harden the system against similar hiccups.

Key takeaways

  • The incident stemmed from a propagation-change that triggered repeated fetches of non-executable transactions as base fees climbed, prompting a rollback to restore stability.
  • Despite the hiccup, the network remained operational and continued producing blocks, indicating resilience even as throughput slowed.
  • Longer-term fixes are targeted at the transaction pipeline, overhead reduction, mempool handling, and enhanced rollout monitoring, with an estimated one-month timeline.
  • Base is the leading Ethereum layer-2 by TVL, holding about $4.2 billion and roughly 47.6% of the Ethereum L2 market, according to DefiLlama data on a recent Wednesday.
  • Arbitrum (CRYPTO: ARB) sits in second place with about 27% of the L2 market, while other networks remain in single-digit shares.
  • The episode underscores Base’s central role in Coinbase’s broader “super-app” strategy, integrating stablecoins and on-chain utilities into an expanding suite of products beyond traditional trading.

Tickers mentioned: $ETH, $ARB

Sentiment: Neutral

Market context: The episode highlights ongoing scaling tensions in the Ethereum ecosystem as users migrate activity to layer-2 solutions. Base’s ascent to a majority share of Ethereum L2 TVL underscores the significance of reliability as decentralized finance, payments, and other on-chain use cases increasingly rely on L2 infrastructure. The incident comes amid a landscape where TVL concentration among leading L2s remains pronounced, making resilience and governance in rollout processes particularly important for market participants.

Why it matters

The event is a reminder that even the most sophisticated scaling stacks face operational risk as they push higher throughput and lower fees for users. For Base, the stakes are heightened by Coinbase’s strategy to turn the network into the backbone of an “everything exchange”—a platform that blends crypto trading with stocks, prediction markets and other financial services. By positioning Base as the on-chain distribution layer for Coinbase’s broader product suite, the company aims to accelerate adoption and embed on-chain rails across multiple product lines.

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From a technical perspective, the rollback demonstrates a fast-response mechanism in practice: a rollback to a safe configuration, followed by a commitment to strengthen the pipeline and monitoring. The plan to streamline the transaction pipeline, trim unnecessary overhead, optimize the mempool’s handling of pending transactions, and bolster monitoring during infrastructure rollouts indicates a shift from quick patch fixes toward more foundational resilience. The time horizon—a little over a month—reflects the emphasis on both rapid stabilization and longer-term reliability enhancements.

Market researchers and on-chain developers will be watching how these improvements translate into real-world throughput and user experience. Base’s leadership in TVL among Ethereum L2s—reported at about $4.2 billion and a 47.6% share on one recent update—highlights the impact of operational reliability on capital allocation across competing networks. Arbitrum trails at roughly 27% of the L2 market, illustrating a competitive dynamic where even small improvements in efficiency or uptime can influence flow and engagement on L2 ecosystems. The broader implication is that reliability, governance, and measurable performance gains become critical differentiators as users evaluate where to deploy capital and where to build new applications.

Crucially, the incident sits within Coinbase’s broader strategic framework. By strengthening Base and expanding its use cases—from stablecoins to real-world financial utilities—the company signals a long-term commitment to on-chain infrastructure as a foundation for diverse products. This approach is consistent with the trend of crypto platforms seeking to commoditize on-chain rails, enabling a wider array of services that extend beyond custody and trading. As the ecosystem evolves, the emphasis on robust, observable performance will be a key factor shaping developer and user confidence in Layer-2 networks as scalable, secure conduits for everyday financial activity.

What to watch next

  • Progress of the one-month improvement window: updates on the rollout, new monitoring dashboards, and any interim performance metrics.
  • Any subsequent status notices from Base on X or through official channels detailing stability metrics or new incidents.
  • Changes to the transaction pipeline and mempool handling, including benchmarks on throughput and latency during peak periods.
  • Definitive commentary from Coinbase and Base leadership about how the improvements may influence adoption of the “everything exchange” concept.

Sources & verification

  • Official Base status update on X describing the rollback and restored stability: https://x.com/buildonbase/status/2018845942884237816
  • DefiLlama data on Ethereum layer-2 TVL shares and Base’s market position: https://defillama.com/chains/ethereum
  • Arbitrum market share reference: https://cointelegraph.com/arbitrum-price-index

Base’s scaling hiccup and the road ahead

Base sits atop Ethereum (CRYPTO: ETH), and its rapid ascent as the leading Ethereum layer-2 has reframed how developers and users think about scaling, gas efficiency, and on-chain usability. In the latest episode, a propagation-change misstep briefly disrupted everyday activity, renewing focus on the fragility that can accompany swift deployments. The network’s ability to continue producing blocks, even as a backlog of transactions faced difficulty entering the mempool, underscored resilience—yet also exposed the delicate balance between speed and reliability that underpins Layer-2 ecosystems.

In a Wednesday update on X, Base explained that the root cause lay in how transaction propagation was implemented during a previous change. As base fees climbed, the block builder repeatedly fetched transactions that could not be executed, creating artificial pressure and delays. The corrective move—rolling back the change—appeared to restore stable operation, and engineers signaled that the episode had highlighted gaps to address in the near term. The planned fixes emphasize a broader redesign: a more streamlined transaction pipeline, reduced overhead, refined mempool logic, and heightened vigilance during infrastructure rollouts. The goal is not only to restore performance but to prevent recurrence as activity continues to migrate toward Layer-2 solutions.

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Techniques for measuring and maintaining throughput will be central as Base competes for dominance with other major Layer-2 networks. Arbitrum, for example, remains a formidable contender with a substantial share of the market, illustrating that users and developers weigh reliability, cost, and developer experience as they allocate liquidity across L2s. The competitive dynamic among networks—Base’s dominant position versus Arbitrum’s strong footing—suggests that even incremental improvements to uptime or transaction latency can yield meaningful shifts in on-chain activity and liquidity flows.

Beyond the technical fixes, Base’s role within Coinbase’s strategic framework is increasingly clear. The company has signaled a push toward an “everything exchange” model, a platform that blends crypto trading with traditional financial products and services. Stablecoins and on-chain payments are part of this vision, but the network’s future hinges on how seamlessly it can scale, support diverse product features, and maintain a high level of reliability for users and developers alike. As Base expands, it becomes a pillar in Coinbase’s broader ambition to normalize on-chain interactions across everyday financial use cases, reinforcing the importance of robust Layer-2 infrastructure in a rapidly evolving crypto landscape.

Risk & affiliate notice: Crypto assets are volatile and capital is at risk. This article may contain affiliate links. Read full disclosure

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Here’s How US Funding Certainty Calmed Markets and Lifted Bitcoin

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Here’s How US Funding Certainty Calmed Markets and Lifted Bitcoin


Bitcoin dipped to $72.8K during U.S. shutdown fears, then rebounded sharply after lawmakers passed a funding bill.

Bitcoin (BTC) slid to around $72,800 yesterday as U.S. lawmakers debated a stopgap funding package before rebounding once the House passed the bill on February 4, 2026, easing fears of a government shutdown.

The quick turnaround showed how closely crypto prices still track U.S. political risk, even when no blockchain-specific news is involved.

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Shutdown Fears Ripple Through Crypto

According to a February 4 post by on-chain analytics firm Santiment, the sell-off unfolded during U.S. trading hours while headlines pointed to a tight vote in the House. As uncertainty built, BTC quickly fell, triggering about $30 million in DeFi liquidations and mirroring a synchronized drop in the S&P 500 and even gold, an asset typically viewed as a safe haven.

This correlation indicates traders were reducing exposure to volatile assets broadly due to the political standoff, not crypto-specific news.

The concern centered on whether Congress would approve a roughly $1.2 trillion funding package to keep most federal agencies running through September 30. Failure would have led to a partial shutdown, delaying economic data and adding stress to an already cautious market.

The tense vote saw Republican divisions, with one representative voting against the bill due to foreign aid provisions.

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However, the bill ultimately passed, averting a shutdown and causing markets to respond with immediate relief. Bitcoin bounced from its lows, climbing over 5% within hours, and the S&P 500 also recovered. According to Santiment, the speedy recovery showed that fears of political dysfunction, rather than a fundamental reevaluation of Bitcoin’s value, were behind the earlier sell-off.

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Broader Pressures on Bitcoin’s Price

While the funding bill news provided a clear short-term catalyst, Bitcoin is still facing broader headwinds. Per data from CoinGecko, the asset is down nearly 14% in the last seven days and 17% for the month.

A recently published analysis from Galaxy Digital pointed to deteriorating on-chain metrics, with research head Alex Thorn noting that 46% of Bitcoin’s circulating supply is now “underwater,” meaning it was last moved at higher prices, which can increase selling pressure. He also pointed out that there was a lack of significant accumulation by large holders.

Furthermore, on February 3, reports that Iran was seeking to shift the format of nuclear talks with the U.S. contributed to another leg down in Bitcoin’s price, pushing it below $75,000 and burning at least $20 million worth of derivative positions.

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Additionally, some analysts like Doctor Profit have revised their downside targets, saying the cycle bottom could hit a range between $44,000 and $54,000. However, the key question is whether the resolution of the immediate U.S. political risk will be enough to reverse these negative technical and on-chain trends, or if BTC is still vulnerable to a deeper test of support.

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GAS Tanks 90% After AI Dev ‘Steps Back’

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GAS Tanks 90% After AI Dev ‘Steps Back’


The Gas Town token has plunged to a $1.1 million valuation just four days after peaking above $60 million.

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Most Crypto Holders Want to Pay with Bitcoin but Rarely Do, Survey Show

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Most Crypto Holders Want to Pay with Bitcoin but Rarely Do, Survey Show


But most say limited merchant acceptance and high fees stop them from spending crypto.

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Classic Chart Pattern Signals ETH Could Slip Below $2K

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Classic Chart Pattern Signals ETH Could Slip Below $2K

The price of Ethereum’s native token, Ether (ETH), risks sliding below $2,000 in February as a classic bearish setup plays out.

Key takeaways:

  • ETH breakdown keeps $1,665 downside target in focus.

  • MVRV bands also point to price sliding toward $1,725 or lower before a potential bottom.

ETH/USD daily chart. Source: TradingView

ETH risks declining 25% in February

As of Wednesday, ETH had entered the breakdown stage of its prevailing inverse-cup-and-handle (IC&H) pattern. This could extend a downtrend that has already erased about 60% from its August 2025 peak.

An IC&H pattern forms when price forms a rounded top and then drifts higher in a small recovery channel. It typically resolves when the price breaks below the neckline support, often falling by as much as the cup’s maximum height.

Ether broke below the inverse cup-and-handle neckline near $2,960 in January. It later rebounded to retest that level as resistance, a common post-breakdown move, only to resume its decline.

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Ether inverse cup-and-handle. Source: TradingView

ETH’s rebound also stalled below the 20-day (green) and 50-day (red) EMAs, which acted as overhead resistance.

These confluence indicators raised ETH’s odds of declining toward the IC&H breakdown target at around $1,665, down 25%, in February or by early March.

Historically, the inverse cup-and-handle hits its projected downside target with an 82% success rate, according to a study by Chartswatcher.

From a macro perspective, Ethereum’s downside risk is increasing as traders cut back on crypto bets, worried the market could slip into a broader 2026 downturn similar to past “four-year cycle” pullbacks.

Fears of an “AI bubble” popping are also forcing traders to avoid riskier bets such as crypto.

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Ethereum’s MVRV bands hint at $1,725 target

Ethereum’s technical downside target sat just below the lowest boundary of its MVRV extreme deviation pricing bands, currently at $1,725.

These bands are onchain price zones that show when ETH is trading below or above the average price at which traders last moved their coins.

Ethereum MVRV extreme deviation pricing bands. Source: Glassnode

Historically, ETH price plunged near or even below the lowest MVRV band before bottoming out.

That includes the April 2025 bounce, when the ETH price rose 90% a month after testing the lowest MVRV deviation band around $1,390. A similar rebound occurred in June 2018.

Related: ETH funding rate turns negative, but US macro conditions mute buy signal

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Therefore, Ether may decline toward $1,725 or below in February, which lines up with the IC&H downside target.