Claude Opus 4.1 vs Gemini 3.1 Pro
Gemini 3.1 Pro leads the LLM Stats Score 43.4 to 30.0. Gemini 3.1 Pro is 5.3x cheaper per token.
Anthropic · Google · Updated for 2026
Which is better?
Gemini 3.1 Pro leads the overall LLM Stats Score 43.4 to 30.0, ranking #39 overall.
In the 3 individual benchmarks reported for both models, Gemini 3.1 Pro wins 3; this is a narrower head-to-head signal than the composite indexes.
On price, Gemini 3.1 Pro is roughly 5.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 3.1 Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Opus 4.1
- you want predictable pricing at $15.00/M input and $75.00/M output
Choose Gemini 3.1 Pro
- overall performance matters — it scores 43.4 and ranks #39 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 3 of 3 exact shared results
- cost matters — it's about 5.3x cheaper per token
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Feb 2026
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
8 reported for Claude Opus 4.1 · 20 for Gemini 3.1 Pro
Claude Opus 4.1 outperforms in 0 benchmarks, while Gemini 3.1 Pro is better at 3 benchmarks (GPQA, MMMLU, SWE-Bench Verified).
Gemini 3.1 Pro significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Opus 4.1 ($15.00/1M tokens) is 6.0x more expensive than Gemini 3.1 Pro ($2.50/1M tokens).
For output processing, Claude Opus 4.1 ($75.00/1M tokens) is 5.0x more expensive than Gemini 3.1 Pro ($15.00/1M tokens).
In conclusion, Claude Opus 4.1 is more expensive than Gemini 3.1 Pro.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 3.1 Pro accepts 1,048,576 input tokens compared to Claude Opus 4.1's 200,000 tokens. Gemini 3.1 Pro can generate longer responses up to 65,536 tokens, while Claude Opus 4.1 is limited to 32,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude Opus 4.1 and Gemini 3.1 Pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Opus 4.1
Gemini 3.1 Pro
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude Opus 4.1 was released on 2025-08-05, while Gemini 3.1 Pro was released on 2026-02-19.
Gemini 3.1 Pro is 7 months newer than Claude Opus 4.1.
Aug 5, 2025
1.1 years ago
Feb 19, 2026
6 months ago
6mo newerKnowledge Cutoff
When training data ends
Gemini 3.1 Pro has a documented knowledge cutoff of 2025-01-31, while Claude Opus 4.1's cutoff date is not specified.
We can confirm Gemini 3.1 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Claude Opus 4.1's cutoff date.
—
Jan 2025
Provider Availability
Claude Opus 4.1 is available from Anthropic, Bedrock, Google. Gemini 3.1 Pro is available from Google.
Claude Opus 4.1
Gemini 3.1 Pro
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Opus 4.1 and Gemini 3.1 Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Opus 4.1 vs Gemini 3.1 Pro.