GPT-5 vs Mistral Small 4
Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, Mistral Small 4 is cheaper by about $580.00/month.
| GPT-5 | Mistral Small 4 | |
|---|---|---|
| Intelligence | ||
| Arena · Overall(LMArena Elo — higher is better) | 1405✓ | 1325 |
| Arena rank (overall) | #57✓ | #94 |
| Arena · Coding | 1418✓ | 1328 |
| Arena · Math & reasoning | 1420✓ | 1320 |
| Arena · Agentic / tool use | 1415✓ | — |
| Score evidence | Measured | Measured |
| Pricing (USD / 1M tokens) | ||
| Input | $1.25 | $0.1500✓ |
| Output | $10.00 | $0.6000✓ |
| Cached input (read) | $0.1250✓ | — |
| Cache write | — | — |
| Blended(3:1 input:output blend) | $3.44 | $0.2625✓ |
| Specs & capabilities | ||
| Provider | OpenAI | Mistral AI |
| Context window | 128K (128,000) | 131K (131,000)✓ |
| Max output | 128,000✓ | 8,192 |
| Modalities | text, image | text |
| Vision | Yes | No |
| Tool use | Yes | Yes |
| Reasoning | Yes | No |
| Prompt caching | Yes | No |
| Batch pricing | Yes | No |
| Tokenizer | o200k_base | approx |
| Release date | — | — |
| Status | ga | ga |
Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 11 October 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.
Compare on your own workload
GPT-5 and Mistral Small 4 are pre-loaded. Adjust the tokens and monthly volume to see which is cheaper for your usage.
Used unless you set active users below.
Results update automatically as you type.
| Mistral Small 4 | Mistral AI | $0.000450 | $45.00 | $540.00 | 131,000 |
| GPT-5 | OpenAI | $0.00625 | $625.00 | $7,500.00 | 128,000 |
FAQ
Which is cheaper, GPT-5 or Mistral Small 4?
For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, Mistral Small 4 is cheaper, costing about $45.00/month versus $625.00/month.
What is the context window of GPT-5 and Mistral Small 4?
GPT-5 supports 128,000 tokens, while Mistral Small 4 supports 131,000 tokens.
Estimates for planning only. Verify current pricing with each provider.