Head to head on 16 boards: Anthropic places best on 13, DeepSeek places best on 3 and StepFun places best on 0. All 3 ranked on 6 of 23 boards.
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| Board | Read |  StepFun |  Anthropic |  DeepSeek |
|---|
| Chat2 | | | | |
|---|
 Text ArenaArena ratingtodaytoday | Nov 9todaytoday | #701,448Step 5 Preview | #41,505best of the pickedClaude Opus 5.5 | #321,475DeepSeek V4.1 Flash |
 MultiChallengeScoretodaytoday | Nov 9todaytoday | | #1067.7%Claude Haiku 5.5 | #574.9%best of the pickedDeepSeek V4P1 Flash |
| Reasoning7 | | | | |
|---|
 AA IntelligenceIndextodaytoday | Nov 9todaytoday | #2328.5Step 5 Preview | #259.1best of the pickedClaude Opus 5.5 | #1632.6DeepSeek V4.1 Flash |
 LiveBenchGlobal averagetodaytoday | Nov 9todaytoday | | #183.4%best of the pickedClaude Fable 5.1 | #881.1%DeepSeek V4.1 Flash |
 GPQA DiamondAccuracytodaytoday | Nov 9todaytoday | | #395.6%best of the pickedClaude Sonnet 5.5 | #2193.2%DeepSeek V4.1 Flash |
| Epoch ECIECItodaytoday | Nov 9todaytoday | | #3168.4best of the pickedClaude Opus 5.5 | #19159.3DeepSeek V4.1 Flash |
 ARC-AGI-2Scoretodaytoday | Nov 9todaytoday | | #393.3%best of the pickedClaude Opus 5.5 | #1978.1%DeepSeek V4.1 Flash |
 MMLU-ProAccuracy · staletodaytoday | Nov 9todaytoday | | #489.1%best of the pickedClaude Opus 4.6 | #3385.0%DeepSeek-V3.2 |
| HLEAccuracytodaytoday | Nov 9todaytoday | | #246.5%Claude Fable 5.1 | |
| Coding4 | | | | |
|---|
| WebDev ArenaArena ratingtodaytoday | Nov 9todaytoday | #381,572Step 5 Preview | #11,814best of the pickedClaude Opus 5.5 | #141,665DeepSeek V4.1 Flash |
 SWE-bench VerifiedResolved · staletodaytoday | Nov 9todaytoday | | #176.8%best of the pickedClaude Opus 4.5 | #1170.0%DeepSeek-V3.2 |
 Aider PolyglotPass rate · staletodaytoday | Nov 9todaytoday | | #1072.0%Claude Opus 4 | #874.2%best of the pickedDeepSeek-V3.2 |
| SWE-Bench ProResolvedtodaytoday | Nov 9todaytoday | | #198.0%Claude Opus 5 | |
| Agents and tools3 | | | | |
|---|
 BFCLOverall accuracy · staletodaytoday | Nov 9todaytoday | | #177.5%best of the pickedClaude Opus 4.5 | #1256.7%DeepSeek-V3.2 |
| MCP AtlasPass ratetodaytoday | Nov 9todaytoday | | #387.2%Claude Fable 5.1 | |
| Search ArenaArena ratingtodaytoday | Nov 9todaytoday | | #51,229Claude Fable 5 | |
| Vision2 | | | | |
|---|
| Vision ArenaArena ratingtodaytoday | Nov 9todaytoday | #511,247Step 5 Preview | #11,309best of the pickedClaude Fable 5 | #341,263DeepSeek V4.1 Flash |
| Document ArenaArena ratingtodaytoday | Nov 9todaytoday | | #11,499Claude Fable 5 | |
| Image1 | | | | |
|---|
| Image EditArena ratingtodaytoday | Nov 9todaytoday | #51996Step1x Edit | | |
| Speech1 | | | | |
|---|
| Speech ArenaArena ratingtodaytoday | Nov 9todaytoday | #181,216Stepaudio 2.5 TTS | | |
| Speed1 | | | | |
|---|
| AA SpeedOutput speedtodaytoday | Nov 9todaytoday | #2214 tok/sStep 5 Preview | #931 tok/sbest of the pickedClaude Sonnet 5.5 | #1323 tok/sDeepSeek V4 Pro 0813 |
| Price1 | | | | |
|---|
| AA PriceBlended pricetodaytoday | Nov 9todaytoday | | #1$0.20best of the pickedClaude Haiku 5.5 | #3$0.53DeepSeek V4.1 Flash |
| Usage1 | | | | |
|---|
 OpenRouterWeekly tokenstodaytoday | Nov 9todaytoday | #57.2T tokStep 5 Preview | #66.8T tokClaude Opus 5.5 | #156.0T tokbest of the pickedDeepSeek V4.1 Flash |
Green marks the best placing among the picked where two or more are ranked; ties are marked for each. Ranks are each board's own order (lower is better), scores as the board published them. Dash: not on that board.
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