Fusion Nano on HellaSwag: score, rank and what it means
Fusion Nano scores 72.5 on HellaSwag, placing it #486 of 600 models in the index. The benchmark average is 81.4 and the leader is GPT-5.2 Max at 96.1.
Score distribution
The chart shows the top 10 models on HellaSwag, with Fusion Nano highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Max | OpenAI | 1000000 | $21.39 | 89.2 |
| 2 | GPT-5.2 Turbo | OpenAI | 1000000 | $20.73 | 87.4 |
| 3 | GPT-5.2 Pro | OpenAI | 2000000 | $21.32 | 89.6 |
| 4 | Claude Opus 4.5 Pro | Anthropic | 200000 | $20.98 | 89.1 |
| 5 | Claude Sonnet 4.5 Reasoning | Anthropic | 400000 | $19.48 | 87.7 |
| 6 | Grok 4 Reasoning | xAI | 2000000 | $19.67 | 87.8 |
| 7 | GPT-5.2 Vision | OpenAI | 1000000 | $19.03 | 87.4 |
| 8 | Gemini 3 Pro Turbo | Google DeepMind | 400000 | $19.62 | 86.4 |
| 9 | GPT-5.1 Reasoning | OpenAI | 400000 | $20.27 | 88.3 |
| 10 | o4 Pro | OpenAI | 1000000 | $19.37 | 87.3 |
What this score means
On HellaSwag, Fusion Nano sits at #486 of 600. The leader, GPT-5.2 Max, scores 96.1, so the gap to the top is 23.6 points. The median model in this index scores 83.6, which puts Fusion Nano below the midpoint.
OpenRouter models average 80.2 on this benchmark. Fusion Nano is 7.7 points below that provider line, so it is a weaker result than the average OpenRouter model.
Among mid-range models, the average is 79.8. Fusion Nano is 7.3 points below that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.
Read a 72.5 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 $2.96 per million input tokens, Fusion Nano is below the median input price of $4.00 across the 600 models scored on HellaSwag. 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 |
|---|---|---|---|---|
| Embed 4 Mini | Cohere | 4096 | $2.48 | 55.8 |
| QwQ 8B | Alibaba Cloud | 16384 | $1.37 | 59.5 |
| Qwen3-Coder 7B | Alibaba Cloud | 32768 | $1.24 | 59.6 |
| Pythia | EleutherAI | 32768 | $1.29 | 59.8 |
| Fusion Nano | OpenRouter | 8192 | $2.96 | 56.8 |
| Pythia Chat | EleutherAI | 4096 | $1.31 | 59.1 |
| Llama 3.1 8B | Meta AI | 8192 | $1.15 | 58.7 |
Other benchmarks for Fusion Nano
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 64.5 | 461 | 23th | |
| GPQA Diamond | 50.7 | 515 | 14th | |
| SWE-bench Verified | 41.8 | 501 | 17th | |
| HumanEval | 61.0 | 488 | 19th | |
| MATH-500 | 59.7 | 468 | 22th | |
| AIME 2025 | 45.4 | 495 | 18th | |
| LiveCodeBench | 42.8 | 518 | 14th | |
| IFEval | 66.5 | 510 | 15th | |
| TruthfulQA | 63.8 | 472 | 21th | |
| MMMU | 55.9 | 490 | 18th | |
| Arena Elo | 1263.0 | 470 | 22th |
FAQ
What score does Fusion Nano get on HellaSwag?
Fusion Nano scores 72.5 on HellaSwag in this index. The benchmark average is 81.4 and the top score is 96.1.
How does Fusion Nano rank on HellaSwag?
It ranks #486 of 600 models, in the 19th percentile. The leader is GPT-5.2 Max at 96.1.
Is Fusion Nano good at HellaSwag?
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 HellaSwag score calculated?
HellaSwag is a commonsense 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 Fusion Nano cost?
Fusion Nano costs $2.96 per million input tokens and $14.36 per million output tokens.