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Claude Sonnet 5 vs GPT-5 Image Mini

Side-by-side API pricing and Artificial Analysis performance for Claude Sonnet 5 (Anthropic) and GPT-5 Image Mini (OpenAI). Green cells mark the better value in each row.

Prices updated Sep 19, 2026, 11:29 PM UTC · refreshed hourly

Claude Sonnet 5

Anthropic

GPT-5 Image Mini

OpenAI

Pricing
Input $/1M$2.00$2.50
Output $/1M$10.00$2.00
Blended $/1M (3:1)$4.00$2.38
RAG example (30K in / 2K out)$0.08$0.079
Quality & speed
Intelligence Index38.2
Coding Index71.5
Agentic Index44.3
Output speed (tok/s)79
Time to first token116.86s
Specs
Context window1M400K
Input modalitiestext, image, filefile, image, text

FAQ

Which is cheaper, Claude Sonnet 5 or GPT-5 Image Mini?

GPT-5 Image Mini has the lower blended API price at $2.38 per 1M tokens (3:1 input:output mix), versus $4.00 for the other model. Prices are live from OpenRouter and refresh about hourly.

Which is better for RAG workloads?

For a typical RAG request (30K input / 2K output tokens), GPT-5 Image Mini costs about $0.079 per request versus $0.08. Also compare context windows: Claude Sonnet 5 offers 1M and GPT-5 Image Mini offers 400K.

Which scores higher on Artificial Analysis benchmarks?

Claude Sonnet 5 leads on the Artificial Analysis Intelligence Index (38.2 vs —). Check coding and agentic indices on this page for workload-specific tradeoffs.