High-volume product features

Gemini 3.5 Flash vs GPT-5 nano Cost

Side-by-side planning costs for high-volume Flash vs ultra-cheap nano routing.

See sample costs Custom calculator

Google

Gemini 3.5 Flash

Provider: Google
Modality: text
Context: 1,000,000
Input / 1M: $1.50
Output / 1M: $9.00
Cached / 1M: $0.15
Batch discount: 50%

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OpenAI

GPT-5 nano

Provider: OpenAI
Modality: text
Context: 400,000
Input / 1M: $0.05
Output / 1M: $0.40
Cached / 1M: $0.005
Batch discount: 50%

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Sample workload

Estimated spend on a shared scenario

Catalog rates updated 2026-07-31. Same inputs on both models for an apples-to-apples read.

Gemini 3.5 Flash

10k × 2k/500 tokens

$75.00

GPT-5 nano

10k × 2k/500 tokens

$3.00

Lower cost

GPT-5 nano is lower by $72.00 on this sample workload.

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Approximate static list prices for planning only. Always verify against each provider’s official pricing page before production budgeting.