Mistral Small (latest) vs OpenAI: o4 Mini
Mistral Small (latest) is cheaper than OpenAI: o4 Mini by about 86% on a blended (75% input / 25% output) basis. Mistral Small (latest) charges $0.150000 / $0.600000 per 1M input/output tokens; OpenAI: o4 Mini charges $1.100000 / $4.400000.
| Field | Mistral Small (latest) | OpenAI: o4 Mini |
|---|---|---|
| Input $/Mtok | $0.150000 | $1.100000 |
| Output $/Mtok | $0.600000 | $4.400000 |
| Cache read $/Mtok | $0.015000 | $0.275000 |
| Cache write $/Mtok | – | – |
| Input $/Mchar | 0.053343 | 0.309885 |
| Output $/Mchar | 0.213371 | 1.239541 |
| Context window | 256000 | 200000 |
| Tokenizer | mistral | o200k |
Price history
Same workload, monthly cost
Illustrative monthly cost at 10M tokens/month, split per workload preset. Not a substitute for the calculator, which uses your own volume, cache and batch assumptions.
| Workload | Mistral Small (latest) | OpenAI: o4 Mini |
|---|---|---|
| Coding agent | $1.73 | $12.65 |
| RAG chat | $2.17 | $15.95 |
| Summarisation (batch) | $1.95 | $14.30 |
| Classification | $1.59 | $11.66 |
| Chat assistant | $3.30 | $24.20 |
| Content generation | $5.10 | $37.40 |
Cite this page
Mistral Small (latest) vs OpenAI: o4 Mini: $0.150000/$0.600000 vs $1.100000/$4.400000 per 1M tokens, as of 2026-10-04 (Token Barometer, https://tokenbarometer.com/compare/mistral_mistral-small-2503-vs-openai_o4-mini).
Mistral Small (latest) page | OpenAI: o4 Mini page | Open in calculator