DeepSeek V3.1
DeepSeek V3.1 is developed by DeepSeek, released 2025-08-21.
Model ID: deepseek-chat-v3.1
Input price
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Output price
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Blended price
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Epoch Capabilities Index (ECI)
140.8
21st percentile of 107 models with an Epoch Capabilities Index (ECI) score
Epoch AI · as of 2025-08-21
Epoch Mock AIME accuracy
No public data yet
Epoch FrontierMath (T1–3) accuracy
No public data yet
Arena text rating
1417.1
48th percentile of 164 models with an Arena text rating score
LMArena · as of 2026-11-06
Arena coding rating (human preference votes, not task accuracy)
1447.4
LMArena · as of 2026-11-06
Arena math rating
1412.6
LMArena · as of 2026-11-06
Arena WebDev rating
No public data yet
No API price is published for this model in our data sources (models.dev,
LiteLLM), so we show — rather than guess. It may be unreleased via API, open-weights
only, or simply not tracked yet.
See all of DeepSeek's models on its provider page, or browse the full model directory. Full source licenses and sync dates: /data-sources/.