OpenAI's GPT and Moonshot AI's Kimi, compared through their current models on the Respan Index. The strongest GPT model today is GPT-6 Astra (#2 on the Respan Index, 70.5); the strongest Kimi model is Kimi K3 (#21, 50.6). GPT's best models lead in coding, agents, reasoning, knowledge and human preference.
| Category | GPT | Kimi |
|---|---|---|
| coding | GPT-6 Astra 61.8 | Kimi K3 37.2 |
| agents | GPT-6 Astra 77.0 | Kimi K3 63.1 |
| reasoning | GPT-6.1 Sol 78.6 | Kimi K3 47.0 |
| knowledge | GPT-6 Astra 75.8 | Kimi K3 52.7 |
| human preference | GPT-6 Astra 59.7 | Kimi K3 56.7 |
Each family's highest Respan Index category score; the higher one is bold. * Estimated: no published scores in that category.
Respan Index rank and score, blended list price per 1M tokens.
Respan Index rank and score, blended list price per 1M tokens.
The cheapest ranked GPT model is GPT-5 nano at $0.138 per 1M tokens blended; the cheapest Kimi model is Kimi K2.6 at $1.71.