GPT-5 Nano vs Voxtral Small
Price and specs side by side · USD per 1M tokens · verified 2026-10-23
// side by side
| metric | GPT-5 Nano | Voxtral Small |
|---|
| input / 1M | $0.05 | $0.10 |
| output / 1M | $0.40 | $0.40 |
| blended (3:1) | $0.1375 | $0.175 |
| cache read / 1M | $0.005 | — |
| context | 400K | 32.8K |
| max output | 128K | 32K |
| input types | text · image | text · audio · pdf |
| reasoning | yes | no |
| tool calling | yes | yes |
| structured output | yes | yes |
| open weights | no | yes |
| released | 2025-08-07 | 2025-07-15 |
| knowledge cutoff | 2024-05-30 | n/a |
| lab | OpenAI | Mistral |
// monthly cost scenarios
| workload | tokens in / out | GPT-5 Nano | Voxtral Small |
|---|
| Chatbot | 10M / 2M | $1.30 | $1.80 |
| RAG app | 50M / 5M | $4.50 | $7.00 |
| Coding agent | 20M / 10M | $5.00 | $6.00 |
// verdict
- GPT-5 Nano is 21.4% cheaper than Voxtral Small on a blended 3:1 input/output basis.
- GPT-5 Nano has the larger context window (400K vs 32.8K tokens).
- Only GPT-5 Nano supports built-in reasoning.
- Only GPT-5 Nano accepts image input.
- Chatbot (10M input / 2M output tokens per month): GPT-5 Nano costs $1.30 vs $1.80 for Voxtral Small, saving $0.50 per month.
- RAG app (50M input / 5M output tokens per month): GPT-5 Nano costs $4.50 vs $7.00 for Voxtral Small, saving $2.50 per month.
- Coding agent (20M input / 10M output tokens per month): GPT-5 Nano costs $5.00 vs $6.00 for Voxtral Small, saving $1.00 per month.
// GPT-5 Nano or Voxtral Small: which one to choose
- Choose GPT-5 Nano for cost-sensitive, high-volume workloads.
- Choose GPT-5 Nano for long documents and large codebases (400K-token context).
- Choose GPT-5 Nano if you need built-in reasoning.
- Choose GPT-5 Nano if you need image input.
- Choose Voxtral Small if you want open weights you can self-host.