Kimi K2 Chat on GPQA Diamond: score, rank and what it means
Kimi K2 Chat scores 77.4 on GPQA Diamond, placing it #99 of 600 models in the index. The benchmark average is 65.6 and the leader is GPT-5.2 Reasoning at 87.0.
Score distribution
The chart shows the top 10 models on GPQA Diamond, with Kimi K2 Chat highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Reasoning | OpenAI | 1000000 | $20.98 | 87.5 |
| 2 | GPT-5.1 Max | OpenAI | 2000000 | $20.50 | 87.9 |
| 3 | Claude Opus 4.5 Pro | Anthropic | 200000 | $20.98 | 89.1 |
| 4 | GPT-5.1 Reasoning | OpenAI | 400000 | $20.27 | 88.3 |
| 5 | Claude Sonnet 4.5 Reasoning | Anthropic | 400000 | $19.48 | 87.7 |
| 6 | GPT-5.2 | OpenAI | 2000000 | $19.71 | 88.0 |
| 7 | o4 Turbo | OpenAI | 2000000 | $19.34 | 86.6 |
| 8 | Claude Opus 4.5 Max | Anthropic | 1000000 | $20.90 | 87.8 |
| 9 | Grok 4 Turbo | xAI | 1000000 | $19.21 | 86.7 |
| 10 | Claude Sonnet 4.5 Max | Anthropic | 1000000 | $19.90 | 87.2 |
What this score means
On GPQA Diamond, Kimi K2 Chat sits at #99 of 600. The leader, GPT-5.2 Reasoning, scores 87.0, so the gap to the top is 9.6 points. The median model in this index scores 68.8, which puts Kimi K2 Chat above the midpoint.
Moonshot AI models average 67.7 on this benchmark. Kimi K2 Chat is 9.7 points above that provider line, so it is a stronger result than the average Moonshot AI model.
Among multimodal models, the average is 73.5. Kimi K2 Chat is 3.9 points above that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.
Read a 77.4 as a relative signal, not an absolute guarantee. Benchmark scores depend on prompt format, evaluation harness and contamination controls. Use this page to narrow the shortlist, then test the model on your own data.
Price context
At $5.74 per million input tokens, Kimi K2 Chat is above the median input price of $4.00 across the 600 models scored on GPQA Diamond. The models immediately around it in the ranking are shown below so you can compare score and price together.
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| o3 Turbo | OpenAI | 200000 | $16.63 | 83.4 |
| Gemini 3 Flash Turbo | Google DeepMind | 200000 | $17.07 | 84.1 |
| Kimi K2 | Moonshot AI | 128000 | $5.85 | 83.0 |
| Kimi K1.5 Instruct | Moonshot AI | 200000 | $5.15 | 80.5 |
| Kimi K2 Chat | Moonshot AI | 400000 | $5.74 | 82.1 |
| Claude 3.7 Sonnet Vision | Anthropic | 400000 | $13.96 | 81.0 |
| Grok 3 Reasoning | xAI | 200000 | $16.07 | 82.9 |
Other benchmarks for Kimi K2 Chat
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 82.7 | 110 | 82th | |
| SWE-bench Verified | 70.0 | 110 | 82th | |
| HumanEval | 88.1 | 71 | 88th | |
| MATH-500 | 84.8 | 112 | 81th | |
| AIME 2025 | 84.1 | 48 | 92th | |
| LiveCodeBench | 74.5 | 100 | 83th | |
| IFEval | 88.0 | 101 | 83th | |
| TruthfulQA | 82.8 | 111 | 82th | |
| HellaSwag | 91.6 | 46 | 92th | |
| MMMU | 79.6 | 64 | 89th | |
| Arena Elo | 1445.6 | 89 | 85th |
FAQ
What score does Kimi K2 Chat get on GPQA Diamond?
Kimi K2 Chat scores 77.4 on GPQA Diamond in this index. The benchmark average is 65.6 and the top score is 87.0.
How does Kimi K2 Chat rank on GPQA Diamond?
It ranks #99 of 600 models, in the 84th percentile. The leader is GPT-5.2 Reasoning at 87.0.
Is Kimi K2 Chat good at GPQA Diamond?
Yes, relative to the index: it is above the median and inside the top half of scores. The result should be read alongside its price and context window.
How is the GPQA Diamond score calculated?
GPQA Diamond is a reasoning benchmark. Scores in this index are modelled estimates on a 0–100 scale (or Elo for Arena), derived from capability tier and benchmark difficulty. They are not official leaderboard results.
What does Kimi K2 Chat cost?
Kimi K2 Chat costs $5.74 per million input tokens and $22.24 per million output tokens.