Grok 3 Nano: pricing, context window and benchmarks
Grok 3 Nano is a mid-range model from xAI. It offers a 8,192-token context window, costs $7.12 per million input tokens and $37.59 per million output tokens, and averages 67.8 across the index's benchmark suite.
Pricing
Grok 3 Nano costs $7.12 per million input tokens and $37.59 per million output tokens. A blended 3:1 input-to-output mix works out to about $14.74 per million tokens. Cached input is listed at $0.93 per million tokens.
| Item | Price | Notes |
|---|---|---|
| Input | $7.12 | per 1M tokens |
| Output | $37.59 | per 1M tokens |
| Cached input | $0.93 | per 1M tokens |
| Blended 3:1 | $14.74 | estimate per 1M tokens |
| 1M in + 1M out | $44.71 | estimate |
Benchmarks
Scores below are modelled estimates on a 0–100 scale. Use them to compare relative position, not as official vendor results.
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 72.1 | 383 | 36th | |
| GPQA Diamond | 65.0 | 360 | 40th | |
| SWE-bench Verified | 55.1 | 384 | 36th | |
| HumanEval | 71.4 | 384 | 36th | |
| MATH-500 | 71.6 | 372 | 38th | |
| AIME 2025 | 62.3 | 374 | 38th | |
| LiveCodeBench | 57.5 | 392 | 35th | |
| IFEval | 76.3 | 384 | 36th | |
| TruthfulQA | 70.6 | 394 | 34th | |
| HellaSwag | 79.8 | 381 | 37th | |
| MMMU | 63.6 | 394 | 34th | |
| Arena Elo | 1349.0 | 366 | 39th |
What Grok 3 Nano is good for
Grok 3 Nano is a general-purpose model in the index. It handles text generation, summarization and question answering, and it can be a sensible default when you need a balance of quality, price and context. At $7.12 per million input tokens with a 8,192-token window, check its benchmark profile against the specific task before committing.
Strengths
- Accepts more than text, including image input where the provider supports it.
Trade-offs
- Proprietary licence: you cannot download the weights or self-host the model.
- Context window of 8,192 tokens is small for long-document work.
- Average benchmark score is below the index median; test it on your own task.
How it compares
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| Hunyuan-Turbo Mini | Tencent | 8192 | $6.59 | 68.3 |
| Sonar Mini | Perplexity | 65536 | $6.52 | 67.9 |
| Grok 3 Nano | xAI | 8192 | $7.12 | 67.8 |
| Arctic Base | Snowflake | 32768 | $2.27 | 67.5 |
| Nemotron Nano Instruct | NVIDIA | 32768 | $2.33 | 67.4 |
| OLMo 2 Base | Allen Institute for AI | 65536 | $2.39 | 67.4 |
FAQ
How much does Grok 3 Nano cost?
Grok 3 Nano is listed at $7.12 per million input tokens and $37.59 per million output tokens. Cached input is $0.93 per million tokens. A blended 3:1 input-to-output mix is about $14.74 per million tokens.
What is the context window of Grok 3 Nano?
Grok 3 Nano has a context window of 8,192 tokens and can emit up to 8,192 output tokens per request in this index.
Is Grok 3 Nano open weights?
No. Grok 3 Nano is a proprietary model with a proprietary licence, so you cannot download the weights.
How does Grok 3 Nano score on benchmarks?
Grok 3 Nano averages 67.8 across the scored benchmarks in this index, ranking #384 of 600 models. Its strongest relative result is Arena Elo at 1349.0.
What is Grok 3 Nano best for?
Grok 3 Nano is a general-purpose model in the index. It handles text generation, summarization and question answering, and it can be a sensible default when you need a balance of quality, price and context. At $7.12 per million input tokens with a 8,192-token window, check its benchmark profile against the specific task before committing.