Kimi K1.5 8B on Arena Elo: score, rank and what it means
Kimi K1.5 8B scores 1300.8 on Arena Elo, placing it #420 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 K1.5 8B 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 K1.5 8B sits at #420 of 600. The leader, Claude Opus 4.5 Max, scores 1501.9, so the gap to the top is 201.1 points. The median model in this index scores 1373.8, which puts Kimi K1.5 8B below the midpoint.
Moonshot AI models average 1366.5 on this benchmark. Kimi K1.5 8B is 65.7 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 K1.5 8B is 76.1 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 1300.8 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 $1.54 per million input tokens, Kimi K1.5 8B 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 |
|---|---|---|---|---|
| Zephyr Instruct | Hugging Face | 4096 | $1.66 | 62.4 |
| Mistral Large 3 8B | Mistral AI | 16384 | $1.62 | 61.6 |
| Nova Pro Nano | Amazon | 8192 | $5.44 | 65.4 |
| MiniMax-M2 8B | MiniMax | 32768 | $1.65 | 61.7 |
| Kimi K1.5 8B | Moonshot AI | 8192 | $1.54 | 62.2 |
| Firefunction Mini | Fireworks AI | 32768 | $4.63 | 63.2 |
| Hunyuan-Turbo Nano | Tencent | 32768 | $4.65 | 62.7 |
Other benchmarks for Kimi K1.5 8B
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 68.1 | 415 | 31th | |
| GPQA Diamond | 59.2 | 413 | 31th | |
| SWE-bench Verified | 45.6 | 456 | 24th | |
| HumanEval | 66.1 | 429 | 29th | |
| MATH-500 | 62.1 | 443 | 26th | |
| AIME 2025 | 54.4 | 417 | 31th | |
| LiveCodeBench | 52.1 | 428 | 29th | |
| IFEval | 72.6 | 422 | 30th | |
| TruthfulQA | 66.9 | 431 | 28th | |
| HellaSwag | 76.2 | 424 | 29th | |
| MMMU | 61.0 | 420 | 30th |
FAQ
What score does Kimi K1.5 8B get on Arena Elo?
Kimi K1.5 8B scores 1300.8 on Arena Elo in this index. The benchmark average is 1349.9 and the top score is 1501.9.
How does Kimi K1.5 8B rank on Arena Elo?
It ranks #420 of 600 models, in the 30th percentile. The leader is Claude Opus 4.5 Max at 1501.9.
Is Kimi K1.5 8B 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 K1.5 8B cost?
Kimi K1.5 8B costs $1.54 per million input tokens and $5.98 per million output tokens.