Model Comparison

v2.0

Price Data Last Verified: March 21, 2026

GPT-4.1-nano vs Gemini 2.5 Flash: AI API Cost Comparison (2026)

This page compares per-token pricing and context limits for GPT-4.1-nano and Gemini 2.5 Flashusing a standard scenario of 10,000 input tokens and 10,000 output tokens.

Model A

GPT-4.1-nano

OpenAI

Input / 1M
$0.10
Output / 1M
$0.40
Context Window
1M

Model B

Gemini 2.5 Flash

Google

Input / 1M
$0.075
Output / 1M
$0.30
Context Window
1M

Cost Breakdown Table

ModelInput CostOutput CostTotal Cost
GPT-4.1-nano$0.001$0.004$0.005
Gemini 2.5 Flash$0.0008$0.003$0.0038

Verdict

High Volume

Best pick: Gemini 2.5 Flash for a 2,000,000 in /2,000,000 out workload.

Low Budget

Best pick: Gemini 2.5 Flash 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.