Claude 3.5 Haiku vs GPT-4.1 Nano

Performance benchmarks + pricing comparison — updated April 2026

Claude 3.5 Haiku

Anthropic

Fast, cost-effective model for high-volume tasks. Great for code review and simple queries.

Input$0.800/M
Output$4.00/M
Context200K tokens
Best ForCode review, high-volume tasks, simple queries
Benchmark52/100

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.

ScenarioClaude 3.5 HaikuGPT-4.1 NanoSavings
Small Script (1K lines) $0.16 $0.02 GPT-4.1 Nano saves $0.15 (91%)
Medium Feature (10K lines) $1.24 $0.12 GPT-4.1 Nano saves $1.13 (91%)
Large Project (50K lines) $6.21 $0.58 GPT-4.1 Nano saves $5.63 (91%)
Code Review (5K lines) $0.32 $0.03 GPT-4.1 Nano saves $0.29 (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.

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