Kimi K2 1.5B on Arena Elo: score, rank and what it means
Kimi K2 1.5B scores 1239.6 on Arena Elo, placing it #514 of 600 models in the index. The benchmark average is 1349.9 and the leader is Claude Opus 4.5 Max at 1501.9.
Score distribution
The chart shows the top 10 models on Arena Elo, with Kimi K2 1.5B highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | Claude Opus 4.5 Max | Anthropic | 1000000 | $20.90 | 87.8 |
| 2 | GPT-5.2 Reasoning | OpenAI | 1000000 | $20.98 | 87.5 |
| 3 | GPT-5.2 Turbo | OpenAI | 1000000 | $20.73 | 87.4 |
| 4 | Claude Opus 4.5 Reasoning | Anthropic | 2000000 | $20.91 | 88.2 |
| 5 | GPT-5.2 Max | OpenAI | 1000000 | $21.39 | 89.2 |
| 6 | Gemini 3 Pro Turbo | Google DeepMind | 400000 | $19.62 | 86.4 |
| 7 | Grok 4 Max | xAI | 2000000 | $19.70 | 86.6 |
| 8 | Claude Opus 4.5 | Anthropic | 400000 | $19.42 | 87.7 |
| 9 | GPT-5.1 Pro | OpenAI | 200000 | $19.77 | 87.8 |
| 10 | Grok 4 Reasoning | xAI | 2000000 | $19.67 | 87.8 |
What this score means
On Arena Elo, Kimi K2 1.5B sits at #514 of 600. The leader, Claude Opus 4.5 Max, scores 1501.9, so the gap to the top is 262.3 points. The median model in this index scores 1373.8, which puts Kimi K2 1.5B below the midpoint.
Moonshot AI models average 1366.5 on this benchmark. Kimi K2 1.5B is 126.9 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 1224.7. Kimi K2 1.5B is 14.9 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 1239.6 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 Arena Elo. 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 |
|---|---|---|---|---|
| Llama 3 Replicate 8B | Replicate | 32768 | $1.00 | 57.0 |
| Llama 3.3 Groq 7B | Groq | 16384 | $1.01 | 56.7 |
| Pythia Base | EleutherAI | 16384 | $0.99 | 55.9 |
| Llama 3 Lambda 8B | Lambda | 4096 | $1.03 | 57.2 |
| Kimi K2 1.5B | Moonshot AI | 4096 | $0.99 | 56.8 |
| Seed-OSS 7B | ByteDance | 8192 | $0.85 | 55.5 |
| MiniMax-M2 1.5B | MiniMax | 16384 | $0.84 | 54.6 |
Other benchmarks for Kimi K2 1.5B
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 60.5 | 521 | 13th | |
| GPQA Diamond | 55.4 | 458 | 24th | |
| 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 |
FAQ
What score does Kimi K2 1.5B get on Arena Elo?
Kimi K2 1.5B scores 1239.6 on Arena Elo in this index. The benchmark average is 1349.9 and the top score is 1501.9.
How does Kimi K2 1.5B rank on Arena Elo?
It ranks #514 of 600 models, in the 14th percentile. The leader is Claude Opus 4.5 Max at 1501.9.
Is Kimi K2 1.5B good at Arena Elo?
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 Arena Elo score calculated?
Arena Elo is a preference 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.