OpenAI o3 vs Together Mistral Small 3
Performance benchmarks + pricing comparison — updated April 2026
OpenAI o3
OpenAINext generation reasoning model. Improved coding and math over o1.
| Input | $10.00/M |
| Output | $40.00/M |
| Context | 200K tokens |
| Best For | Advanced coding, complex problem-solving |
| Benchmark | 85/100 |
Together Mistral Small 3
Together AIMistral Small 3 via Together AI. Efficient mid-size model for general tasks.
| Input | $0.800/M |
| Output | $0.800/M |
| Context | 32K tokens |
| Best For | General text tasks, chat, summarization |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | OpenAI o3 | Together Mistral Small 3 | Savings |
|---|---|---|---|
| Small Script (1K lines) | $1.55 | $0.05 | Together Mistral Small 3 saves $1.50 (97%) |
| Medium Feature (10K lines) | $11.50 | $0.44 | Together Mistral Small 3 saves $11.06 (96%) |
| Large Project (50K lines) | $57.50 | $2.20 | Together Mistral Small 3 saves $55.30 (96%) |
| Code Review (5K lines) | $2.75 | $0.16 | Together Mistral Small 3 saves $2.59 (94%) |
Verdict
Together Mistral Small 3 wins on both price and performance — $0.800/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
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Claude Opus 4
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Claude 3.5 Sonnet
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Claude 3.5 Haiku
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Claude 3 Opus
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Claude 3 Sonnet
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