OpenAI o3 vs Amazon Nova Micro

Performance benchmarks + pricing comparison — updated April 2026

OpenAI o3

OpenAI

Next generation reasoning model. Improved coding and math over o1.

Input$10.00/M
Output$40.00/M
Context200K tokens
Best ForAdvanced coding, complex problem-solving
Benchmark85/100

Amazon Nova Micro

Amazon

Amazon's most cost-effective model. Optimized for speed and low-cost text generation tasks.

Input$0.035/M
Output$0.140/M
Context128K tokens
Best ForHigh-volume text processing, summarization

Cost Comparison by Scenario

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

ScenarioOpenAI o3Amazon Nova MicroSavings
Small Script (1K lines) $1.55 <$0.01 Amazon Nova Micro saves $1.54 (100%)
Medium Feature (10K lines) $11.50 $0.04 Amazon Nova Micro saves $11.46 (100%)
Large Project (50K lines) $57.50 $0.20 Amazon Nova Micro saves $57.30 (100%)
Code Review (5K lines) $2.75 <$0.01 Amazon Nova Micro saves $2.74 (100%)

Verdict

Amazon Nova Micro wins on both price and performance — $0.035/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