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Claude Sonnet 4 vs GPT-4o Cost

Compare approximate Claude Sonnet 4 and GPT-4o API list prices for input, output, cache, and batch workloads.

See sample costs Custom calculator

Anthropic

Claude Sonnet 4

Provider: Anthropic
Modality: text
Context: 200,000
Input / 1M: $3.00
Output / 1M: $15.00
Cached / 1M: $0.30
Batch discount: 50%

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OpenAI

GPT-4o

Provider: OpenAI
Modality: text
Context: 128,000
Input / 1M: $2.50
Output / 1M: $10.00
Cached / 1M: $1.25
Batch discount: 50%

View model page →

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.

Claude Sonnet 4

10k × 2k/500 tokens

$135.00

GPT-4o

10k × 2k/500 tokens

$100.00

Lower cost

GPT-4o is lower by $35.00 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.