Model A
GPT-4.1-nano
OpenAI
- Input / 1M
- $0.10
- Output / 1M
- $0.40
- Context Window
- 1M
Model Comparison
v2.0Price Data Last Verified: March 21, 2026
GPT-4.1-nano vs Claude Sonnet 4.5: AI API Cost Comparison (2026)
This page compares per-token pricing and context limits for GPT-4.1-nano and Claude Sonnet 4.5using a standard scenario of 10,000 input tokens and 10,000 output tokens.
Model B
Claude Sonnet 4.5
Anthropic
- Input / 1M
- $3.00
- Output / 1M
- $15.00
- Context Window
- 200K
Cost Breakdown Table
| Model | Input Cost | Output Cost | Total Cost |
|---|---|---|---|
| GPT-4.1-nano | $0.001 | $0.004 | $0.005 |
| Claude Sonnet 4.5 | $0.03 | $0.15 | $0.18 |
Verdict
High Volume
Best pick: GPT-4.1-nano for a 2,000,000 in /2,000,000 out workload.
Low Budget
Best pick: GPT-4.1-nano for a 10,000 in /10,000 out request profile.
About the Methodology
Cost estimates are generated from published input and output token rates for each provider. We apply identical token scenarios to both models in this comparison, so the result reflects price differences only. Pricing values are reviewed weekly against official API documentation and updated when changes are verified.