OpenAI o3 vs GPT-4.1 Nano
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 |
GPT-4.1 Nano
OpenAIOpenAI's smallest and cheapest GPT-4.1 model. Fast responses for simple tasks.
| Input | $0.100/M |
| Output | $0.400/M |
| Context | 1M tokens |
| Best For | Simple queries, classification, fast responses |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | OpenAI o3 | GPT-4.1 Nano | Savings |
|---|---|---|---|
| Small Script (1K lines) | $1.55 | $0.02 | GPT-4.1 Nano saves $1.53 (99%) |
| Medium Feature (10K lines) | $11.50 | $0.12 | GPT-4.1 Nano saves $11.38 (99%) |
| Large Project (50K lines) | $57.50 | $0.58 | GPT-4.1 Nano saves $56.92 (99%) |
| Code Review (5K lines) | $2.75 | $0.03 | GPT-4.1 Nano saves $2.72 (99%) |
Verdict
GPT-4.1 Nano 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
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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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