Yi-Lightning 8B on SWE-bench Verified: score, rank and what it means
Yi-Lightning 8B scores 44.6 on SWE-bench Verified, placing it #471 of 600 models in the index. The benchmark average is 57.5 and the leader is GPT-5.2 Pro at 81.7.
Score distribution
The chart shows the top 10 models on SWE-bench Verified, with Yi-Lightning 8B highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Pro | OpenAI | 2000000 | $21.32 | 89.6 |
| 2 | Claude Opus 4.5 Pro | Anthropic | 200000 | $20.98 | 89.1 |
| 3 | GPT-5.2 Max | OpenAI | 1000000 | $21.39 | 89.2 |
| 4 | Claude Sonnet 4.5 Max | Anthropic | 1000000 | $19.90 | 87.2 |
| 5 | GPT-5.2 | OpenAI | 2000000 | $19.71 | 88.0 |
| 6 | GPT-5.1 Pro | OpenAI | 200000 | $19.77 | 87.8 |
| 7 | o4 Max | OpenAI | 2000000 | $19.51 | 86.2 |
| 8 | Claude Sonnet 4.5 Reasoning | Anthropic | 400000 | $19.48 | 87.7 |
| 9 | Claude Opus 4.5 Max | Anthropic | 1000000 | $20.90 | 87.8 |
| 10 | Claude Opus 4.5 Reasoning | Anthropic | 2000000 | $20.91 | 88.2 |
What this score means
On SWE-bench Verified, Yi-Lightning 8B sits at #471 of 600. The leader, GPT-5.2 Pro, scores 81.7, so the gap to the top is 37.1 points. The median model in this index scores 61.0, which puts Yi-Lightning 8B below the midpoint.
01.AI models average 52.2 on this benchmark. Yi-Lightning 8B is 7.6 points below that provider line, so it is a weaker result than the average 01.AI model.
Among small open-weight models, the average is 39.0. Yi-Lightning 8B is 5.6 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 44.6 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 $1.16 per million input tokens, Yi-Lightning 8B is below the median input price of $4.00 across the 600 models scored on SWE-bench Verified. 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 |
|---|---|---|---|---|
| Pythia | EleutherAI | 32768 | $1.29 | 59.8 |
| Qwen3 7B | Alibaba Cloud | 32768 | $1.37 | 59.8 |
| StableLM 2 Base | Stability AI | 8192 | $1.49 | 61.9 |
| Llama 3 Modal 8B | Modal | 32768 | $0.98 | 56.6 |
| Yi-Lightning 8B | 01.AI | 4096 | $1.16 | 59.2 |
| DeepSeek-Coder 8B | DeepSeek | 32768 | $1.26 | 58.7 |
| Llama 3 Anyscale 7B | Anyscale | 4096 | $0.98 | 56.2 |
Other benchmarks for Yi-Lightning 8B
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 65.3 | 449 | 25th | |
| GPQA Diamond | 55.2 | 461 | 23th | |
| HumanEval | 60.4 | 499 | 17th | |
| MATH-500 | 60.2 | 460 | 23th | |
| AIME 2025 | 51.3 | 446 | 26th | |
| LiveCodeBench | 46.6 | 482 | 20th | |
| IFEval | 68.9 | 479 | 20th | |
| TruthfulQA | 65.8 | 448 | 25th | |
| HellaSwag | 74.1 | 455 | 24th | |
| MMMU | 58.6 | 449 | 25th | |
| Arena Elo | 1257.5 | 478 | 20th |
FAQ
What score does Yi-Lightning 8B get on SWE-bench Verified?
Yi-Lightning 8B scores 44.6 on SWE-bench Verified in this index. The benchmark average is 57.5 and the top score is 81.7.
How does Yi-Lightning 8B rank on SWE-bench Verified?
It ranks #471 of 600 models, in the 22nd percentile. The leader is GPT-5.2 Pro at 81.7.
Is Yi-Lightning 8B good at SWE-bench Verified?
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 SWE-bench Verified score calculated?
SWE-bench Verified is a coding 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 Yi-Lightning 8B cost?
Yi-Lightning 8B costs $1.16 per million input tokens and $5.13 per million output tokens.