Kimi K2 1.5B on GPQA Diamond: score, rank and what it means
Kimi K2 1.5B scores 55.4 on GPQA Diamond, placing it #458 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 1.5B 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 1.5B sits at #458 of 600. The leader, GPT-5.2 Reasoning, scores 87.0, so the gap to the top is 31.6 points. The median model in this index scores 68.8, which puts Kimi K2 1.5B below the midpoint.
Moonshot AI models average 67.7 on this benchmark. Kimi K2 1.5B is 12.3 points below that provider line, so it is a weaker result than the average Moonshot AI model.
Among small open-weight models, the average is 49.3. Kimi K2 1.5B is 6.1 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 55.4 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 $0.99 per million input tokens, Kimi K2 1.5B is below 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 |
|---|---|---|---|---|
| QwQ 8B | Alibaba Cloud | 16384 | $1.37 | 59.5 |
| Pythia | EleutherAI | 32768 | $1.29 | 59.8 |
| Pythia Chat | EleutherAI | 4096 | $1.31 | 59.1 |
| Qwen3-Coder 7B | Alibaba Cloud | 32768 | $1.24 | 59.6 |
| Kimi K2 1.5B | Moonshot AI | 4096 | $0.99 | 56.8 |
| Qwen3-Coder 8B | Alibaba Cloud | 32768 | $1.43 | 61.3 |
| Qwen3 7B | Alibaba Cloud | 32768 | $1.37 | 59.8 |
Other benchmarks for Kimi K2 1.5B
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 60.5 | 521 | 13th | |
| SWE-bench Verified | 40.0 | 522 | 13th | |
| HumanEval | 62.7 | 462 | 23th | |
| MATH-500 | 58.8 | 480 | 20th | |
| AIME 2025 | 46.4 | 485 | 19th | |
| LiveCodeBench | 42.2 | 524 | 13th | |
| IFEval | 68.3 | 485 | 19th | |
| TruthfulQA | 61.5 | 512 | 15th | |
| HellaSwag | 71.9 | 501 | 17th | |
| MMMU | 57.3 | 465 | 23th | |
| Arena Elo | 1239.6 | 514 | 14th |
FAQ
What score does Kimi K2 1.5B get on GPQA Diamond?
Kimi K2 1.5B scores 55.4 on GPQA Diamond in this index. The benchmark average is 65.6 and the top score is 87.0.
How does Kimi K2 1.5B rank on GPQA Diamond?
It ranks #458 of 600 models, in the 24th percentile. The leader is GPT-5.2 Reasoning at 87.0.
Is Kimi K2 1.5B good at GPQA Diamond?
It is below the median for this benchmark, so test it carefully before relying on it for this capability. 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 1.5B cost?
Kimi K2 1.5B costs $0.99 per million input tokens and $5.06 per million output tokens.