Which company has #1 AI model end of September? (Style Control On)
Open32as of
This hub tracks 32 outcomes of this event, with the news signals that move them.
What are the odds right now?
Each outcome shows its current market price — the market-implied probability it happens. Click an outcome for its full market page.
What moved the odds?
30 AI-matched news signals available across this event, newest first. Entry price is the called side when the news hit; the signed return marks it against the outcome’s latest price as of .
While its CEO has called for a slowdown in AI development, Anthropic is launching a powerful and less expensive new model.
Anthropic Releases a New ‘Safest’ A.I. Model Amid Slowdown Debate
Anthropic is launching a new AI model designed to accomplish a wide range of business tasks at a lower cost, as the startup seeks to stay ahead of the competition before its initial public offering. The new model, called Claude Opus 5.5, offers performance similar to Fable 5.1, but at a significantly lower cost. According to the company, the new model produces output faster than Opus 5, and tests have shown it writes more clearly. Anthropic plans to expand the 5.5 model family with the release of new versions of Claude Sonnet and Haiku in the coming weeks. #Arabic_Business
While its CEO has called for a slowdown in AI development, Anthropic is launching a powerful and less expensive new model.
China: Alibaba unveils new AI chip and more powerful models
OpenAI Unveils 'Astra'... Will It Change the Landscape of AI Competition?
Anthropic CEO: The company will slow down the pace of AI model development.
Has the machine reached humanity? OpenAI is nearing its biggest dream. Welcome to the age of AGI... With this phrase, OpenAI CEO Greg Brockman introduced the GPT-6 Astra model. He hinted that the world may be entering the early stages of artificial general intelligence. The problem is that technology companies and scientists don't even agree on the definition of AGI. OpenAI links it to surpassing humans in most economically useful tasks. If systems are capable in the future of performing most human work and assisting in invention and developing their capabilities, will AGI be the biggest economic boom in history or the biggest disruption the labor market has ever seen? #Arabic_Business
DeepSeek announces new AI model; improved performance but lower fees.
OpenAI unveils "smartest model ever"
OpenAI releases its most advanced model, claiming it surpasses Anthropic and symbolizes the beginning of the AGI era.
OpenAI to begin rolling out its newest and most powerful AI model GPT-5 – says it has built in safeguards to mitigate security risks • •
OPENAI'S PRESIDENT SAYS AGI MAY HAVE ALREADY ARRIVED, AND THAT THIS IS THE MODEL • • Greg Brockman told reporters that in a couple of years, when people look back and ask when AGI was created, he thinks the answer will be around now and possibly this model. • • OpenAI launched GPT-6 Astra Thursday and calls it the world's best computer use model. In the company's own tests it booked DMV appointments, searched job listings, and apartment hunted faster than the average person. • • Rollout starts with enterprise clients in the Daybreak early access program, then ChatGPT Plus, Pro, and Business. No word on free users. • • OpenAI is racing toward a planned IPO. So is Anthropic.
OPENAI SAYS IT HAS OVERTAKEN ANTHROPIC WITH ITS LATEST AI MODEL - Financial Times
OPENAI SAYS IT HAS OVERTAKEN ANTHROPIC WITH ITS LATEST AI MODEL - Financial Times
Meta's most powerful AI model is unveiled; Wang Tao: It catches up with Anthropic and surpasses GPT-5.6 Sol.
JUST IN: Meta releases Muse Spark 1.3, its most powerful AI model yet, with Alexandr Wang claiming it is “better than” OpenAI’s GPT-5.6 Sol at coding.
AnthropicDesenvolvedora anunciou atualização de seus modelos Claude Fable 5.1 e Mythos 5.192%match88¢+14%
Anthropic launches its most powerful AI yet, along with textual watermarking.
Meta released its most powerful artificial intelligence model yet, with its chief AI officer saying its capabilities are edging closer to top competitors
DEEPSEEK CHALLENGES ANTHROPIC WITH NEW AI MODEL • • DeepSeek has unveiled an experimental multimodal AI model capable of analyzing images, screenshots and text while performing autonomous tasks. • • Called DeepSeek-V4-Flash-Vision-Exp, the model reportedly approaches Anthropic’s Opus 4.8 in multimodal agent performance while retaining DeepSeek’s latest text, reasoning and agent capabilities. • • The release highlights intensifying U.S.-China AI competition, with Chinese developers increasingly offering advanced models at lower costs.
Meta didn't just launch a new AI model; it opened its most powerful models to the world for free. The battle is no longer about who owns the AI, but about who becomes the platform everyone builds on. Will the future of AI be open to everyone or limited to a few companies? #Arabic_Business
“Lost even by Grok due to top-tier model delays”… Google releases only lightweight AI
“Lost even by Grok due to top-tier model delays”… Google releases only lightweight AI
*NVIDIA DEVELOPING NEMOTRON 4 OPEN-SOURCE AI MODEL: INFORMATION
*NVIDIA WORKING ON NEW IN-HOUSE AI MODEL: INFORMATION
Meta launches AI model and Zuckerberg defends "open weight"
What is this event about?
This market will resolve according to the company which owns the model which has the highest arena rank based on the arena.ai Text Arena (Overall) (Style Control On) when the table under the "Leaderboard" tab is checked on September 30, 2026, 12:00 PM ET.
Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall with style control on (Adjustments: Style Control) and filtered for "Models" will be used to resolve this market.
Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.
The resolution source for this market is the arena.ai Text Arena (Overall). If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve to "Other".