Anthropic
claude-opus-4-6
Made by Anthropic. Released 2026-02-05. Accessibility not recorded. We hold no price for this model: no seller we can read lists it any more, so what follows is what was measured, not what it cost.
What it scores, by house
| Benchmark | House | Score | Evaluated | Scaffold |
|---|---|---|---|---|
| chess puzzles | Epoch AI | 0.1±0.03 | 2026-08-06 | max |
| chess puzzles | Epoch AI | 0.1±0.03 | 2026-02-20 | 120K |
| chess puzzles | Epoch AI | 0.1±0.03 | 2026-02-06 | 64K |
| chess puzzles | Epoch AI | 0.2±0.04 | 2026-02-06 | 32K |
| ebr bench | Epoch AI | 0.1 | 2026-06-29 | max |
| frontiermath | Epoch AI | 0.4±0.03 | 2026-02-12 | max |
| frontiermath | Epoch AI | 0.4±0.03 | 2026-02-06 | 32K |
| frontiermath | Epoch AI | 0.4±0.03 | 2026-02-06 | 64K |
| frontiermath | Epoch AI | 0.4±0.03 | 2026-02-05 | — |
| frontiermath tier 4 | Epoch AI | 0.2±0.06 | 2026-02-12 | max |
| frontiermath tier 4 | Epoch AI | 0.2±0.06 | 2026-02-06 | 64K |
| frontiermath tier 4 | Epoch AI | 0.2±0.06 | 2026-02-06 | 32K |
| frontiermath tier 4 | Epoch AI | 0.1±0.05 | 2026-02-05 | — |
| frontiermath tier 4 v2 | Epoch AI | 0.3±0.07 | 2026-06-11 | max |
| frontiermath tiers 1 3 v2 | Epoch AI | 0.7±0.03 | 2026-06-11 | max |
| gpqa diamond | Epoch AI | 0.9±0.02 | 2026-08-06 | max |
| gpqa diamond | Epoch AI | 0.9±0.02 | 2026-02-06 | 64K |
| gpqa diamond | Epoch AI | 0.9±0.02 | 2026-02-06 | 32K |
| mystery game puzzles | Epoch AI | 0.1±0.04 | 2026-08-06 | — |
| mystery game puzzles | Epoch AI | 0.1±0.03 | 2026-08-06 | low |
| mystery game puzzles | Epoch AI | 0.3±0.04 | 2026-07-25 | max |
| otis mock aime 2024 2025near its ceiling | Epoch AI | 0.9±0.04 | 2026-08-06 | max |
| otis mock aime 2024 2025near its ceiling | Epoch AI | 0.9±0.03 | 2026-02-06 | 32K |
| otis mock aime 2024 2025near its ceiling | Epoch AI | 0.9±0.03 | 2026-02-06 | 64K |
| simpleqa verified | Epoch AI | 0.5±0.02 | 2026-08-27 | max |
| swe bench verified | Epoch AI | 0.8±0.02 | 2026-02-18 | — |
| swe bench verified | Epoch AI | 0.8±0.02 | 2026-02-10 | — |
| ale bench | collected by Epoch AI | 997 | — | — |
| algotune | collected by Epoch AI | 1.5 | — | high |
| apex agents | collected by Epoch AI | 0.5 | — | unknown |
| apex agents | collected by Epoch AI | 0.5 | — | max |
| arc aginear its ceiling | collected by Epoch AI | 0.9 | — | 120K |
| arc agi 2 | collected by Epoch AI | 0.7 | — | 120K |
| cl bench | collected by Epoch AI | 0.2 | — | unknown |
| cl bench life | collected by Epoch AI | 0.2 | — | high |
| cl bench life | collected by Epoch AI | 0.1 | — | unknown |
| cybench | collected by Epoch AI | 0.9 | — | unknown |
| deepresearchbench | collected by Epoch AI | 0.5 | — | low |
| deepresearchbench | collected by Epoch AI | 0.5 | — | medium |
| deepresearchbench | collected by Epoch AI | 0.6 | — | high |
| dtbenchnear its ceiling | collected by Epoch AI | 0.9 | — | max |
| enigma eval | collected by Epoch AI | 0.1 | — | — |
| enigma eval | collected by Epoch AI | 0.1 | — | max |
| forecastbench | collected by Epoch AI | 60.0 | — | unknown |
| frontiercode | collected by Epoch AI | 0.3 | — | claude-code |
| gbaeval | collected by Epoch AI | 0.4 | — | unknown |
| gso | collected by Epoch AI | 0.4 | — | OpenHands |
| hle | collected by Epoch AI | 0.3 | — | max |
| hle | collected by Epoch AI | 0.2 | — | — |
| lmca | collected by Epoch AI | 55.8 | — | max |
| metr time horizons | collected by Epoch AI | 719 | — | unknown |
| proofbench | collected by Epoch AI | 0.5 | — | max |
| rli | collected by Epoch AI | 0.0 | — | unknown |
| simplebench | collected by Epoch AI | 0.7 | — | — |
| terminalbench | collected by Epoch AI | 0.7 | — | Droid |
| terminalbench | collected by Epoch AI | 0.7 | — | TongAgents |
| terminalbench | collected by Epoch AI | 0.7 | — | MAYA-V2 |
| terminalbench | collected by Epoch AI | 0.7 | — | Terminus-KIRA |
| terminalbench | collected by Epoch AI | 0.6 | — | Claude Code |
| terminalbench | collected by Epoch AI | 0.8 | — | Capy |
| terminalbench | collected by Epoch AI | 0.8 | — | Meta-Harness |
| terminalbench | collected by Epoch AI | 0.8 | — | ForgeCode |
| terminalbench | collected by Epoch AI | 0.6 | — | Terminus 2 |
| terminalbench | collected by Epoch AI | 0.7 | — | Crux |
| terminalbench | collected by Epoch AI | 0.7 | — | Mux |
| vending bench 2 | collected by Epoch AI | 8018 | — | unknown |
| webdev arena | collected by Epoch AI | 1556 | — | unknown |
| webdev arena | collected by Epoch AI | 1546 | — | high |
| webdev arena | collected by Epoch AI | 1536 | — | — |
| weirdml | collected by Epoch AI | 0.8 | — | unknown |
| weirdml | collected by Epoch AI | 0.7 | — | — |
| weirdml | collected by Epoch AI | 0.8 | — | high |
These scores are not comparable between houses and are not added up. A score is dated by when it was evaluated, not when the model was released, and a score without its scaffold is not a measurement — which is why both are printed.
What retires, and when
- deprecation — 2027-02-05 (Active)