modelgrep

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

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

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 Terra
Intelligence Index44.255.0✓
Coding Index61.876.7✓
GPQA Diamond91%93%✓
Design Arena Elo1351✓—
Speed (tokens/sec)133✓87
Latency412ms✓1.7s
Input price /M$0.650✓$2.50
Output price /M$3.41✓$15.00
Context window262K1.1M✓
CapabilitiesReasoningToolsJSONVisionReasoningToolsJSONVision
MoonshotAI: Kimi K2.6 details →OpenAI: GPT-5.6 Terra details →