OpenAI o3-mini vs GPT-4.1 Nano

Performance benchmarks + pricing comparison — updated April 2026

OpenAI o3-mini

OpenAI

Affordable reasoning model for coding tasks. Best price-performance for algorithm-heavy work.

Input$1.10/M
Output$4.40/M
Context200K tokens
Best ForAlgorithm design, coding challenges, debugging
Benchmark80/100

GPT-4.1 Nano

OpenAI

OpenAI's smallest and cheapest GPT-4.1 model. Fast responses for simple tasks.

Input$0.100/M
Output$0.400/M
Context1M tokens
Best ForSimple 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.

ScenarioOpenAI o3-miniGPT-4.1 NanoSavings
Small Script (1K lines) $0.17 $0.02 GPT-4.1 Nano saves $0.16 (91%)
Medium Feature (10K lines) $1.27 $0.12 GPT-4.1 Nano saves $1.15 (91%)
Large Project (50K lines) $6.33 $0.58 GPT-4.1 Nano saves $5.75 (91%)
Code Review (5K lines) $0.30 $0.03 GPT-4.1 Nano saves $0.27 (91%)

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