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Claude Opus 4.8 vs Gemini 3.1 Pro

Sample workload: short support reply (~512 output tokens). Open the calculator for your own prompt.

FieldClaude Opus 4.8Gemini 3.1 Pro
ProviderAnthropicGoogle
AccuracyApproxApprox
Input / 1M$5.00/1M$2.00/1M
Output / 1M$25.00/1M$12.00/1M
Sample input tokens2525
Sample request cost$0.012925$0.006194
PagesModel pageModel page

Try your own prompt

Sample costs above use a fixed support-chat prompt. For your text, open the main calculator with either model preselected.

Claude Opus 4.8 in calculator · Gemini 3.1 Pro in calculator · Count tokens (Claude Opus 4.8) · Count tokens (Gemini 3.1 Pro) · All comparisons

How LLM pricing works · Exact vs Approx · Claude Opus 4.8 page · Gemini 3.1 Pro page