Kimi K3
Multimodal Kimi model with 1M context and toggleable max-effort thinking for long-horizon agent work
ECI STANDING#11 of 266
SCORE157.63155.38–160.45 CI
FRONTIER LAGLaunched 4.4 months behindScores about what GPT-5.4 Pro did in March 2026.
SCORES LIKE THESE MODELSClaude Opus 4.8Anthropic · May 2026158.3Gemini 3.7 FlashGoogle DeepMind · Aug 2026157.44GPT-5.4OpenAI · Mar 2026156.86Qwen 3.8 MaxAlibaba · Aug 2026156.62
Full Epoch Capabilities Index ranking ↗From the lab
Related articleKimi K3 Tech Blog: Open Frontier IntelligenceRELEASE DATEJul 16, 2026
WEIGHTSOpen weights
CONTEXT WINDOW1.05M
MAX OUTPUT131.1K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image, video
OUTPUTStext
Specifications from Models.dev. Availability and limits may differ by provider. Benchmark scores come from Epoch AI under CC BY 4.0.