Sonar Pro Nano on HellaSwag: score, rank and what it means
Sonar Pro Nano scores 79.7 on HellaSwag, placing it #385 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 Sonar Pro 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, Sonar Pro Nano sits at #385 of 600. The leader, GPT-5.2 Max, scores 96.1, so the gap to the top is 16.4 points. The median model in this index scores 83.6, which puts Sonar Pro Nano below the midpoint.
Perplexity models average 84.7 on this benchmark. Sonar Pro Nano is 5.0 points below that provider line, so it is a weaker result than the average Perplexity model.
Among mid-range models, the average is 79.8. Sonar Pro Nano is 0.1 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 79.7 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 $5.50 per million input tokens, Sonar Pro Nano is above 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 |
|---|---|---|---|---|
| Grok 3 Nano | xAI | 8192 | $7.12 | 67.8 |
| Nemotron Nano Chat | NVIDIA | 32768 | $2.21 | 66.2 |
| Arctic Chat | Snowflake | 16384 | $2.70 | 69.8 |
| Nemotron Nano Instruct | NVIDIA | 32768 | $2.33 | 67.4 |
| Sonar Pro Nano | Perplexity | 32768 | $5.50 | 66.1 |
| Reka Core Mini | Reka AI | 8192 | $7.48 | 70.1 |
| Molmo Instruct | Allen Institute for AI | 32768 | $2.53 | 68.3 |
Other benchmarks for Sonar Pro Nano
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 68.6 | 410 | 32th | |
| GPQA Diamond | 62.5 | 387 | 36th | |
| SWE-bench Verified | 55.4 | 381 | 37th | |
| HumanEval | 69.6 | 402 | 33th | |
| MATH-500 | 69.0 | 389 | 35th | |
| AIME 2025 | 58.8 | 395 | 34th | |
| LiveCodeBench | 58.2 | 388 | 35th | |
| IFEval | 73.1 | 416 | 31th | |
| TruthfulQA | 70.6 | 395 | 34th | |
| MMMU | 61.2 | 418 | 30th | |
| Arena Elo | 1328.5 | 390 | 35th |
FAQ
What score does Sonar Pro Nano get on HellaSwag?
Sonar Pro Nano scores 79.7 on HellaSwag in this index. The benchmark average is 81.4 and the top score is 96.1.
How does Sonar Pro Nano rank on HellaSwag?
It ranks #385 of 600 models, in the 36th percentile. The leader is GPT-5.2 Max at 96.1.
Is Sonar Pro 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 Sonar Pro Nano cost?
Sonar Pro Nano costs $5.50 per million input tokens and $22.25 per million output tokens.