A SpecAtlas

Anthropic API vs Google Gemini API

Anthropic API never trains on your inputs at any tier; the Gemini API's free tier may, while its paid tier does not. For confidential data the distinction matters from the first request.

Key differences

- Free-tier data use: Anthropic has no training-on-input at any tier; Gemini's free tier may use prompts for product improvement. - Enterprise path: Anthropic offers Zero Data Retention on request; Google offers Vertex AI for stricter isolation. - Both assign output ownership to the customer and permit commercial use. - Model strengths differ — evaluate on your own reasoning, long-context, and multimodal workloads.

Rights

Key Anthropic API Google Gemini API
commercial_use_allowed yes yes
output_ownership yes yes
training_use_of_input no conditional

Constraints

Key Anthropic API Google Gemini API
api_available yes yes
Anthropic API → Google Gemini API →

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