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#29 frontier model

Claude Sonnet 4.6

Frontier rank
#29
of 37 tracked
Frontier score
-38
100 = #1 on every board
Best placing
#25
Hard problems
Released
Feb 17
Claude Sonnet 4.6 · 2026
Claude Sonnet 4.6 against the field

Benchmarks

Frontier scoreAverage placing, 100 = #1 everywhere
  1. #1Gemini 4 Argon100
  2. #2Claude Opus 5.595
  3. #3Claude Fable 5.184
  4. #4Claude Opus 584
  5. #5Claude Opus 4.684
  6. #6Gemini 3.8 Flash71
  7. #7MiMo V2.6 Pro71
  8. #8Claude Fable 563
  9. #29Claude Sonnet 4.6-38
OverallArena Elo

Claude Sonnet 4.6 isn't on this board yet.

Hard problemsArena Elo
  1. #1Gemini 4 Argon1548
  2. #2Claude Opus 5.51535
  3. #3Claude Opus 4.61527
  4. #4Claude Opus 51526
  5. #5Claude Fable 5.11526
  6. #25Claude Sonnet 4.61484
CodingArena Elo

Claude Sonnet 4.6 isn't on this board yet.

AgentsAgent score

Claude Sonnet 4.6 isn't on this board yet.

Arena leaderboards

Where it places

BoardPlacingScoreVotes
Overall#351458 Elo70,971
Hard problems#251484 Elo46,250
CodingNot on this board
AgentsNot on this board

From blind head-to-head votes on Arena, published Oct 9, 2026. Variants (high, max) count once at their best.

From the lab's own announcement

Release

Claude Sonnet 4.6
Released Feb 17, 2026
✓ Anthropic →
↑ #28 Qwen 3.5#30 GPT-5.6 Sol ↓