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TokenMath.io

API cost comparison

OpenAI vs Gemini API Cost Comparison

This provider comparison uses GPT-4.1 mini and Gemini 2.5 Flash because both are lower-cost text options represented in the current catalog.

Standard workload comparison

1,000 input tokens + 300 output tokens × 10,000 requests per month, with no cache or batch discount.

Monthly cost difference: $1.70

Use your own workloadCompare all models
Compared model rates and standard workload costs
Provider / modelInput / 1MOutput / 1MCached input / 1MMonthly exampleVerification

OpenAI

GPT-4.1 mini

$0.40$1.60$0.10$8.80Lowest costVerified

Jun 21, 2026

OpenAI model pricing

Google Gemini

Gemini 2.5 Flash

$0.30$2.50$0.03$10.50Verified

Jun 21, 2026

Google Gemini API pricing

When each option may fit

These are decision prompts, not quality rankings. Validate capability, latency, context limits, rate limits, and reliability with your own evaluation set.

When the OpenAI option may fit

  • OpenAI integrations reduce implementation work for your product.
  • The selected model meets quality and latency requirements.
  • You have verified account-specific limits and pricing.

When the Gemini option may fit

  • High-volume cost and throughput are important.
  • The Google ecosystem is already part of the application.
  • The task performs well in a representative evaluation.

Frequently asked questions

Why compare GPT-4.1 mini with Gemini Flash?

They are disclosed lower-cost text representatives in the current TokenMath catalog. The comparison is not a claim that their capabilities are identical.

Are free tiers included?

No. The example applies the versioned paid rates in TokenMath's catalog.

Related glossary terms

Input tokens

Input tokens are the tokenized units sent to a model, including instructions, user content, conversation history, retrieved context, and tool definitions.

Open

Output tokens

Output tokens are the tokenized units generated by a language model, including visible responses and any billable reasoning or thinking tokens defined by the provider.

Open

Cost per request

Cost per request is the sum of all billable usage generated by one API call, commonly input token cost plus output token cost for a text model.

Open