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Claude Haiku 4.5 vs Gemini 3.1 Pro Preview

Side-by-side API pricing and Artificial Analysis performance for Claude Haiku 4.5 (Anthropic) and Gemini 3.1 Pro Preview (Google). Green cells mark the better value in each row.

Prices updated Sep 15, 2026, 6:32 PM UTC · refreshed hourly

Claude Haiku 4.5

Anthropic

Gemini 3.1 Pro Preview

Google

Pricing
Input $/1M$1.00$2.00
Output $/1M$5.00$12.00
Blended $/1M (3:1)$2.00$4.50
RAG example (30K in / 2K out)$0.04$0.084
Quality & speed
Intelligence Index17.630.4
Coding Index43.968.8
Agentic Index10.310.3
Output speed (tok/s)121
Time to first token26.58s
Specs
Context window200K1.05M
Input modalitiestext, image, fileaudio, file, image, text, video

FAQ

Which is cheaper, Claude Haiku 4.5 or Gemini 3.1 Pro Preview?

Claude Haiku 4.5 has the lower blended API price at $2.00 per 1M tokens (3:1 input:output mix), versus $4.50 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), Claude Haiku 4.5 costs about $0.04 per request versus $0.084. Also compare context windows: Claude Haiku 4.5 offers 200K and Gemini 3.1 Pro Preview offers 1.05M.

Which scores higher on Artificial Analysis benchmarks?

Gemini 3.1 Pro Preview leads on the Artificial Analysis Intelligence Index (30.4 vs 17.6). Check coding and agentic indices on this page for workload-specific tradeoffs.