Mistral Small 3 vs OpenAI o1 Pro

Performance benchmarks + pricing comparison — updated April 2026

Mistral Small 3

Mistral

Mistral's cost-effective model. Very affordable for general-purpose tasks.

Input$0.100/M
Output$0.300/M
Context32K tokens
Best ForHigh-volume tasks, cost optimization
Benchmark42/100

OpenAI o1 Pro

OpenAI

Premium reasoning model with extended compute. Best-in-class for complex math, science, and advanced coding challenges.

Input$20.00/M
Output$80.00/M
Context200K tokens
Best ForResearch-grade problem solving, competition math, complex system design

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioMistral Small 3OpenAI o1 ProSavings
Small Script (1K lines) $0.01 $3.10 Mistral Small 3 saves $3.09 (100%)
Medium Feature (10K lines) $0.10 $23.00 Mistral Small 3 saves $22.91 (100%)
Large Project (50K lines) $0.47 $115.00 Mistral Small 3 saves $114.53 (100%)
Code Review (5K lines) $0.02 $5.50 Mistral Small 3 saves $5.47 (100%)

Verdict

Mistral Small 3 wins on both price and performance — $0.100/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models