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MoonshotAI: Kimi K2.6 vs OpenAI: GPT-5.6 Sol

moonshotai logoMoonshotAI: Kimi K2.6moonshotai/kimi-k2.6VSopenai logoOpenAI: GPT-5.6 Solopenai/gpt-5.6-sol

MoonshotAI: Kimi K2.6 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.

MetricMoonshotAI: Kimi K2.6OpenAI: GPT-5.6 Sol
Intelligence Index44.258.9✓
Coding Index61.877.4✓
GPQA Diamond91%94%✓
Design Arena Elo1351✓—
Speed (tokens/sec)133✓48
Latency412ms✓3.7s
Input price /M$0.650✓$5.00
Output price /M$3.41✓$30.00
Context window262K1.1M✓
CapabilitiesReasoningToolsJSONVisionReasoningToolsJSONVision
MoonshotAI: Kimi K2.6 details →OpenAI: GPT-5.6 Sol details →