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xAI’s Grok 2.5 vs OpenAI’s GPT-OSS-20B & GPT-OSS-120B: A Comparative Analysis

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xAI’s Grok 2.5 vs OpenAI’s GPT-OSS-20B & GPT-OSS-120B: A Comparative Analysis

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.

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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.

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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.



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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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Billionaire Adam Weitsman Buys Fire Ghost NFT From Ghost Labs

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Billionaire scrap-metal entrepreneur Adam Weitsman continues expanding his involvement in the non-fungible token space through high-volume acquisitions and intellectual property takeovers. In yet another bullish move, the scrap metal mogul has acquired a rare non-fungible token series from the digital asset incubation studio Ghost Labs.

Billionaire Adam Buys More NFTs

In a January 21 blog post, Billionaire Adam Weitsman confirmed he has bought a rare Fire Ghost NFT collection. “The non-fungible token market was pretty brutal today, so I thought I would help by supporting another NFT project that deserves a little more attention in my opinion,” Mr Adam wrote. The billionaire investor has bought 1/1 ‘Fire Ghost’ NFT from the digital asset incubation studio Ghost Labs.

Billionaire Adam Weitsman is a renowned industrialist, entrepreneur, investor, philanthropist, and crypto investor. Most recent estimates from his business and entertainment finance outlets place Adam Weitsman’s net worth in a broad range of about $1.2 billion to $1.5 billion, with some outliers reporting lower or higher figures. Adam serves as CEO of “Weitsman Recycling,” which has become the largest privately held scrap metal recycling company on the East Coast.

Scrap Meta mogul Adam Weitsman officially entered the NFT market in early 2023, marked by a high-profile $1.6 million purchase. Adam has substantially increased his NFT holdings by acquiring 5,000 Otherside NFTs, including Otherdeeds and Kodas, directly from Yuga Labs to support their metaverse project and 229 Meebits in an over-the-counter deal. He is also actively managing the HV-MTL project’s intellectual property. Last week, Adam purchased 100 Quirkies in a private transaction.

Billionaire Adam’s Motive for Buying NFTs

Unlike many traders in the NFT space, Adam Weitsman isn’t motivated by flipping or profit. He’s never sold an NFT in his life, and says he doesn’t believe in selling and never will. In the past pressers, Weitsman emphasized that his acquisitions are about “legacy, not liquidity,” prioritizing the preservation of digital culture over short-term financial gains. “I collect because I love the art, the people, and the history being made. For me, collecting is about legacy, not liquidity,” He said.

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Polymarket to open free grocery store in New York City

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Polymarket launches on Solana through Jupiter integration

Polymarket is taking its brand offline, opening a free grocery store in New York City and backing it with a $1 million donation to fight food insecurity.

Summary

  • Polymarket will open a free grocery store in NYC on Feb. 12, open to all residents.
  • The company donated $1 million to Food Bank For New York City.
  • The move blends community support with a high-profile brand push.

Polymarket, the crypto-based prediction market platform, announced on Feb. 3 that it will open New York City’s first free grocery store later this month as part of a community-focused initiative.

The pop-up store, called “The Polymarket,” is set to open on Feb. 12 at noon ET and will offer groceries at no cost to visitors. The company said no purchase will be required, and the store will be open to all New Yorkers. Polymarket has not yet disclosed the exact location.

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Alongside the launch, Polymarket donated $1 million to Food Bank For New York City, a non-profit that supports hunger relief across all five boroughs. The company described the donation as part of its effort to give back to the city it calls home.

A physical bet on community impact

Polymarket framed the project as a “real, physical investment” in New York. The company said the store will be fully stocked and emphasized that the initiative is meant to address food insecurity rather than function as a traditional retail operation.

Food Bank For New York City said the donation will support its ongoing work to expand access to food and strengthen long-term food security. Polymarket encouraged members of the public to contribute to the organization as well.

Sources familiar with the project say the grocery store is expected to run for a limited time, likely spanning several days around the opening weekend.

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Marketing push amid rising competition

The move also comes as competition heats up among U.S.-based prediction market platforms. Rival Kalshi earlier staged a smaller free grocery giveaway in New York, prompting comparisons between the two campaigns.

Both efforts echo campaign rhetoric from New York Mayor Zohran Mamdani, who previously floated the idea of city-run grocery stores. Polymarket currently hosts active markets tied to whether such stores will open in the city by mid-2026, adding another layer of symbolism to the initiative.

The launch follows a busy stretch for Polymarket. In late January, the platform announced a multi-year partnership with Major League Soccer, becoming the league’s official prediction market partner. On Feb. 2, Polymarket integrated with decentralized exchange aggregator Jupiter, allowing users to access markets directly on Solana.

The company is also navigating regulatory pressure. A Nevada state court issued a temporary restraining order last week preventing Polymarket’s U.S. affiliate from offering certain contracts to Nevada residents, with a hearing scheduled for Feb. 11.

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ETF that feasts on carnage in MSTR hits record high

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ETF that feasts on carnage in MSTR hits record high

There’s always a bull market somewhere.

While bitcoin and shares of bitcoin holder Strategy are falling, an exchange-traded fund designed to move in the opposite direction of MSTR and double its daily change has hit a record high.

That exchange-traded fund is the GraniteShares 2x Short MSTR Daily ETF, trading under the ticker MSDD on Nasdaq. It is an actively managed fund designed to deliver -200% of the Strategy’s daily performance. In simple terms, if MSTR falls 2% in a day, the ETF targets a 4% gain that same day (before fees/decay).

The fund debuted on Jan. 10, 2025 and is seen as a high-risk short-term tactical tool for bears betting against MSTR. And it has lived up to its repute.

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MSDD’s price hit a record high of $114 on Tuesday, up 13.5% on the year, extending the past year’s 275% surge, according to data source TradingView.

MSDD’s compatriot, the Defiance Daily Target 2x Short MSTR ETF (SMST), also clocked an 11-month high of $113 on Tuesday. This fund debuted on Nasdaq in August 2024.

In other words, MSTR bears out there who loaded up on these ETFs have made a killing.

Strategy fell to $126 on Tuesday, the lowest since September 2024, extending its multi-month bear market. The stock is now down a staggering 76% from its lifetime high of $543 in November last year.

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Strategy is the world’s largest publicly listed bitcoin holder, stashing 713,502 BTC ($54.24 billion) at press time. Naturally, its share price tends to follow swings in bitcoin’s market value.

Bitcoin, the leading cryptocurrency by market value, has dropped 12% this year and traded as low as $73,000 on Tuesday. That was the weakest since late 2024. Since then, prices have bounced back to $76,000, thanks to narrowly approved funding package that alleviated near-term U.S. shutdown risk and stabilized risk sentiment in financial markets.

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Why Cardano Investors Are Moving Assets to Self-Custody Now

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ADA Price


“Currently, a 10 billion market cap, this thing is not even worth $1 billion,” one X user argued.

The latest cryptocurrency market crash was brutal, sending Cardano’s ADA to multi-month lows.

Some analysts believe the storm may not be over, warning the price could nosedive by as much as 75% in the short term.

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The Bad Days for the Bulls Aren’t Over?

Several hours ago, ADA plunged to 0.27, the lowest level since August 2024. Currently, it trades at around $0.29 (per CoinGecko’s data), representing a 15% decline on a weekly scale.

ADA Price
ADA Price, Source: CoinGecko

The well-known analyst DrBullZeus claimed that the asset is now nearing “a must hold support zone” at the range of $0.24-$0.28. He thinks that breaking below that level could result in a price crash to $0.125 and even $0.075.

The popular trader Matthew Dixon also chipped in. He suggested that “technically speaking,” ADA has retraced in three waves since the local top seen towards the end of 2024. He outlined $0.24 as a “very important long-term support,” predicting that as long as it holds, the price could rebound.

“A break of support would be a serious concern,” he alerted.

Prior to that, Harmonic Trader predicted that in six months, ADA might trade under $0.10. “Currently, a 10 billion market cap, this thing is not even worth $1 billion,” they argued.

Time to Rally?

Despite ADA’s recent price decline, some other analysts remain optimistic that a resurgence could be on the way. One of them, using the X nickname “Lucky,” asked their almost two million followers whether they plan to increase their exposure to the token at current rates. The analyst also envisioned a potential pump to nearly $1 in the near future.

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LaPetite is also bullish. Several days ago, he forecasted that ADA is about to go “parabolic,” claiming that “huge announcements” concerning Cardano are coming soon.

The recent exchange netflows signal that a rebound could indeed be on the horizon. Data provided by CoinGlass shows that over the past days and weeks, outflows have significantly outpaced inflows. This means investors have been shifting from centralized platforms to self-custody, which in turn reduces immediate selling pressure.

ADA Exchange Netflow
ADA Exchange Netflow, Source: CoinGlass
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Aave Shutters Avara Brand and Family Crypto Wallet

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Aave Shutters Avara Brand and Family Crypto Wallet

Aave Labs says it is sunsetting its “umbrella brand” Avara in the company’s latest move to refocus on decentralized finance and simplify its branding.

Aave founder and CEO Stani Kulechov posted to X on Tuesday that Avara, a company encompassing projects including the Family crypto wallet and previously the social media platform Lens, “is no longer required as we go all in on bringing Aave to the masses.”

Kulechov said the Apple iOS-based Family crypto wallet was also being wound down as the team has “learned that onboarding millions of users requires purpose-built experiences, such as savings, rather than generic, open-ended wallet experiences.”

The move marks Aave’s latest effort to refocus on products such as its flagship lending protocol as the project handed stewardship of Lens to the Mask Network last month, with Kulechov saying Aave’s role in the protocol would be reduced to an advisory role so it can focus on DeFi.

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Source: Stani Kulechov

Kulechov said in his latest post that Aave was “now united as one team of world-class designers, engineers, and smart contract experts, aligned around a single mission: bringing DeFi to everyone.”

All future projects under Aave Labs

Avara said in a blog post that “all current and future products, including the Aave App, Aave Pro, and Aave Kit, will operate under Aave Labs” to simplify the brand.

It added that accounts linked to the Family wallets “will continue as core infrastructure within Aave Labs products,” but the iOS app would be wound down over the next year.

No new users will be onboarded to the app from April 1, and existing users can continue using the app until April 1, 2027, and will continue to have full access to their funds on Aave’s website.

Related: There is no trust in DeFi without proper risk management

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Aave is the biggest DeFi protocol with $30 billion in total value locked, nearly $9 billion more than the next largest project, the staking protocol Lido, which has $21.7 billion in value locked, according to DefiLlama.