LLM leaderboard 2026:
every benchmark, one ranking

Questions people ask

What is the best LLM right now?

As of 26 Oct 2026, Claude Opus 5.5 (max effort) by Anthropic is #1 on the BenchLeader Index (72.6), followed by Gemini 4 Argon (high effort) (70.7) and Muse Wonder Full (max effort) (70.6). The best LLM page breaks the ranking down by use: coding, agents, price and speed.

What is the LLM leaderboard for October 2026?

The top three on 26 Oct 2026 are Claude Opus 5.5 (max effort) (72.6), Gemini 4 Argon (high effort) (70.7) and Muse Wonder Full (max effort) (70.6), out of 442 ranked models. The leaderboard is rebuilt once a day (the run starts at 22:03 UTC) from 240 benchmarks from 43 benchmark publishers.

Which is the best open source LLM on the leaderboard?

Kimi K3 (max effort) by Moonshot AI is the highest-ranked open-weights model on 26 Oct 2026, at 64.8 on the BenchLeader Index (top 50 overall). The best open-weights LLM page lists the rest; check each model's licence before you ship.

How are AI models ranked on BenchLeader?

BenchLeader runs no tests of its own: it combines results already published by independent benchmark publishers. Each benchmark's scores are standardised so that 50 is the average evaluated model and 15 points is one standard deviation; the benchmarks are averaged within their category (coding, reasoning, maths and so on), and the categories into the BenchLeader Index. A model needs at least five independent results across at least two categories to be ranked, and thin evidence is shrunk toward 50. The full method is on the methodology page.

How often is the leaderboard updated?

Every day: the run starts at 22:03 UTC, and the last one finished on 26 Oct 2026. What changed each day is in the daily digest on the blog and in the Atom feed.