Will Anthropic have the best AI model on LiveBench (Overall) at the end of October 2026?

What decides it

Yes if the model with the highest Overall score on livebench.ai (latest release, category 'All') at 12:00 PM ET on 2026-10-31 belongs to Anthropic. Ties on the displayed score go to the lower cost per successful task, then to alphabetical company order. If the site is down, the check waits until it is back up.

Latest

• The livebench.ai page I fetched ('LiveBench 2.0') did not include the leaderboard table, so I could not read the current scores from the primary source.

  livebench.ai · today

• CryptoSlate's market page says Anthropic 'currently occupies the top three LiveBench slots'. It cites recent Opus 5.5 and Sonnet 5.5 releases and Claude Fable 5.1 (released 2026-09-01). It gives no scores or margin. It shows a market-implied ~87% for Anthropic and says OpenAI's GPT-6 As…

  livebench.ai +1 · today

• Unknown: the score gap between Anthropic and the next lab, and whether GPT-6 Astra or a Gemini 4 model has been added to LiveBench.

  livebench.ai +1 · today

• A search snippet listed a different top four: o3-mini (OpenAI) 84.6, GPT-5.5 80.7, GPT-5.4 80.3, Gemini 3.1 Pro 79.9. This looks stale or unreliable and conflicts with the CryptoSlate description. The sources disagree and I could not verify either against livebench.ai.

  livebench.ai +1 · Aug 20

Sources

• livebench.ai
• cryptoslate.com