Mistral Large 3 vs o4-mini
Mistral AI against OpenAI, costed on the same three workloads. Mistral Large 3 is cheaper on all three workloads.
Monthly bill, side by side
| Workload | Mistral Large 3 | o4-mini | Difference |
|---|---|---|---|
| Support chatbot 2,500 six-turn conversations a day |
$1,609 | $3,985 | $2,376 (2.5×) |
| Document summariser 1,000 single-shot summaries a day |
$219 | $508 | $289 (2.3×) |
| Coding agent 200 twelve-turn sessions a day |
$1,224 | $2,891 | $1,667 (2.4×) |
No prompt caching and no batch discount on either side, so the comparison is like for like. Both figures assume 30 days a month.
The rate cards
| Mistral Large 3 | o4-mini | |
|---|---|---|
| Input, per 1M tokens | $0.5 | $1.1 |
| Output, per 1M tokens | $1.5 | $4.4 |
| Cached input | not published | $0.275 |
| Context window | 262K | 200K |
| Maximum output | 262K | 100K |
| Reasoning model | no | yes |
| Vision | yes | yes |
Run this comparison on your own numbers
Full detail: Mistral Large 3 pricing · o4-mini pricing