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Claude Mythos 5.2 vs Gemini 3.1 Pro

Claude Mythos 5.2 leads the LLM Stats Score 59.6 to 42.7. Gemini 3.1 Pro is 3.6x cheaper per token.

Anthropic · Google · Updated for 2026

Which is better?

Claude Mythos 5.2 leads the overall LLM Stats Score 59.6 to 42.7, ranking #2 overall.

On price, Gemini 3.1 Pro is roughly 3.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Mythos 5.2

  • overall performance matters — it scores 59.6 and ranks #2 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Nov 2026

Choose Gemini 3.1 Pro

  • cost matters — it's about 3.6x cheaper per token

At a glance

The differences that matter most.

Claude Mythos 5.2
Anthropic
Gemini 3.1 Pro
Google
Core performance indexes
LLM Stats Score
59.6
#2
42.7
#65
Reasoning
53.3
#8
44.5
#50
Coding
45.1
#5
29.8
#69
Agents
44.6
#2
23.5
#79
Cost, coverage & limits
Benchmark wins
—
—
Input price
$8.00 / M
$2.00 / M
Output price
$40.00 / M
$12.00 / M
Context window
1,000,000
1,000,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Mythos 5.2
Gemini 3.1 Pro
Vision
31.5#33
31.5#34
Tool use
38.0#1
23.0#57
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

9 reported for Claude Mythos 5.2 · 21 for Gemini 3.1 Pro

No common benchmarks found

Claude Mythos 5.2 and Gemini 3.1 Prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Gemini 3.1 Pro costs less

For input processing, Claude Mythos 5.2 ($8.00/1M tokens) is 4.0x more expensive than Gemini 3.1 Pro ($2.00/1M tokens).

For output processing, Claude Mythos 5.2 ($40.00/1M tokens) is 3.3x more expensive than Gemini 3.1 Pro ($12.00/1M tokens).

In conclusion, Claude Mythos 5.2 is more expensive than Gemini 3.1 Pro.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Nov 10 2026 • llm-stats.com
Anthropic
Claude Mythos 5.2
Input tokens$8.00
Output tokens$40.00
Best providerAnthropic
Google
Gemini 3.1 Pro
Input tokens$2.00
Output tokens$12.00
Best providerDeepinfra
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. Gemini 3.1 Pro can generate longer responses up to 1,000,000 tokens, while Claude Mythos 5.2 is limited to 128,000 tokens.

Anthropic
Claude Mythos 5.2
Input1,000,000 tokens
Output128,000 tokens
Google
Gemini 3.1 Pro
Input1,000,000 tokens
Output1,000,000 tokens
Tue Nov 10 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Mythos 5.2 and Gemini 3.1 Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Mythos 5.2

Text
Images
Audio
Video

Gemini 3.1 Pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Mythos 5.2

Proprietary

Closed source

Gemini 3.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Mythos 5.2 was released on 2026-11-09, while Gemini 3.1 Pro was released on 2026-02-19.

Claude Mythos 5.2 is 9 months newer than Gemini 3.1 Pro.

Claude Mythos 5.2

Nov 9, 2026

0 days ago

8mo newer
Gemini 3.1 Pro

Feb 19, 2026

8 months ago

Knowledge Cutoff

When training data ends

Claude Mythos 5.2 has a knowledge cutoff of 2026-06-01, while Gemini 3.1 Pro has a cutoff of 2025-01-31.

Claude Mythos 5.2 has more recent training data (up to 2026-06-01), making it potentially better informed about events through that date compared to Gemini 3.1 Pro (2025-01-31).

Claude Mythos 5.2

Jun 2026

1.4 yr newer
Gemini 3.1 Pro

Jan 2025

Provider Availability

Claude Mythos 5.2 is available from Anthropic. Gemini 3.1 Pro is available from DeepInfra, Google.

Claude Mythos 5.2

anthropic logo
Anthropic
Input Price:Input: $8.00/1MOutput Price:Output: $40.00/1M

Gemini 3.1 Pro

deepinfra logo
Deepinfra
Input Price:Input: $2.00/1MOutput Price:Output: $12.00/1M
google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Mythos 5.2 and Gemini 3.1 Pro side-by-side, then vote on the output you prefer.

Claude Mythos 5.2
✓ Preferred
Gemini 3.1 Pro
Open in Playground

FAQ

Common questions about Claude Mythos 5.2 vs Gemini 3.1 Pro.

Which is better, Claude Mythos 5.2 or Gemini 3.1 Pro?

Claude Mythos 5.2 leads the LLM Stats Score 59.6 to 42.7. Claude Mythos 5.2 is made by Anthropic and Gemini 3.1 Pro is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Mythos 5.2 compare to Gemini 3.1 Pro in benchmarks?

Claude Mythos 5.2 scores De novo protein binder design: 85.1%, Biomedical image analysis: 80.7%, Protocols Troubleshooting: 77.1%, Terminal-Bench-Science 0.1: 75.3%, Terminal-Bench 4.0: 70.5%. Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%.

Is Claude Mythos 5.2 cheaper than Gemini 3.1 Pro?

Gemini 3.1 Pro is 4.0x cheaper for input tokens. Claude Mythos 5.2 costs $8.00/M input and $40.00/M output via anthropic. Gemini 3.1 Pro costs $2.00/M input and $12.00/M output via deepinfra.

What are the context window sizes for Claude Mythos 5.2 and Gemini 3.1 Pro?

Claude Mythos 5.2 supports 1.0M tokens and Gemini 3.1 Pro supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Mythos 5.2 and Gemini 3.1 Pro?

Key differences include LLM Stats Score (59.6 vs 42.7), input pricing ($8.00 vs $2.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Mythos 5.2 and Gemini 3.1 Pro?

Claude Mythos 5.2 is developed by Anthropic and Gemini 3.1 Pro is developed by Google.

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