OpenAI o3 vs O1 Preview
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 |
O1 Preview
OpenAIOpenAI's first reasoning model. Strong at complex problem solving but expensive.
| Input | $15.00/M |
| Output | $60.00/M |
| Context | 128K tokens |
| Best For | Complex math, science, algorithm design |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | OpenAI o3 | O1 Preview | Savings |
|---|---|---|---|
| Small Script (1K lines) | $1.55 | $2.32 | OpenAI o3 saves $0.77 (33%) |
| Medium Feature (10K lines) | $11.50 | $17.25 | OpenAI o3 saves $5.75 (33%) |
| Large Project (50K lines) | $57.50 | $86.25 | OpenAI o3 saves $28.75 (33%) |
| Code Review (5K lines) | $2.75 | $4.13 | OpenAI o3 saves $1.38 (33%) |
Verdict
OpenAI o3 wins on both price and performance — $10.00/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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