Claude Opus 4.8 vs Gemini 3.1 Pro

A side-by-side comparison of Claude Opus 4.8 and Gemini 3.1 Pro — intelligence, context, capabilities, and price.

Spec
Claude Opus 4.8 logoClaude Opus 4.8
Gemini 3.1 Pro logoGemini 3.1 Pro
Context window1M2M
Streaming
Reasoning
Tool use
Web search
Vision (image input)
Document input
Video
Audio
Claude Opus 4.8 pricing
  • Input$5 / 1M tokens
  • Cached input$0.5 / 1M tokens
  • 5m cache write$6.25 / 1M tokens
  • 1h cache write$10 / 1M tokens
  • Output$25 / 1M tokens
  • Web search (when used)$10 / 1,000 searchs

Provider-equivalent rates. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.

View Claude Opus 4.8details →
Gemini 3.1 Pro pricing
  • Up to 200K prompt tokens · Input$2 / 1M tokens
  • Up to 200K prompt tokens · Cached input$0.2 / 1M tokens
  • Up to 200K prompt tokens · Output$12 / 1M tokens
  • Over 200K prompt tokens · Input$4 / 1M tokens
  • Over 200K prompt tokens · Cached input$0.4 / 1M tokens
  • Over 200K prompt tokens · Output$18 / 1M tokens
  • Web search (when used)$14 / 1,000 queries

Provider-equivalent rates. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.

View Gemini 3.1 Prodetails →

Claude Opus 4.8 vs Gemini 3.1 Pro: FAQ

Is Claude Opus 4.8 better than Gemini 3.1 Pro?
Frontier all-rounder. Leads SWE-bench Pro (69%) at AA Intelligence Index v4.1 of 56 — the value pick just below Fable 5. Google DeepMind frontier. 2M context, fully multimodal, and an AA Intelligence Index v4.1 score of 46. The best choice depends on your workload — compare context window, capabilities, and price above, or try both on TryAI.
Which is cheaper, Claude Opus 4.8 or Gemini 3.1 Pro?
See the pricing rows above for live per-token or per-generation costs. TryAI bills both from one pay-as-you-go balance.