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Claude Mythos Preview vs Gemini 4 Argon

Claude Mythos Preview and Gemini 4 Argon are closely matched at 54.4 and 55.1 on the LLM Stats Score.

Anthropic · Google · Updated for 2026

Which is better?

Claude Mythos Preview and Gemini 4 Argon are closely matched on the overall LLM Stats Score at 54.4 and 55.1.

In the 1 individual benchmarks reported for both models, Gemini 4 Argon wins 1; this is a narrower head-to-head signal than the composite indexes.

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

Choose Claude Mythos Preview

  • you want predictable pricing at $25.00/M input and $125.00/M output

Choose Gemini 4 Argon

  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results

At a glance

The differences that matter most.

Core performance indexes
54.4
#5
55.1
#4
55.2
#4
52.4
#7
43.9
#5
44.1
#4
36.3
#17
40.5
#4
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$25.00 / M
— / M
Output price
$125.00 / M
— / M
Context window
—
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Mythos Preview
Gemini 4 Argon
39.5#5
36.8#8
37.1#7
36.9#8
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Claude Mythos Preview · 19 for Gemini 4 Argon

1 shared

Claude Mythos Preview outperforms in 0 benchmarks, while Gemini 4 Argon is better at 1 benchmark (Graphwalks BFS >128k).

Gemini 4 Argon significantly outperforms across most benchmarks.

Sun Oct 11 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Input capabilities

Documented input modalities across available providers

Both Claude Mythos Preview and Gemini 4 Argon support multimodal inputs.

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

Claude Mythos Preview

Text
Images
Audio
Video

Gemini 4 Argon

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 Preview

Proprietary

Closed source

Gemini 4 Argon

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 4 Argon was released on 2026-09-30, while Claude Mythos Preview's release date is not specified.

We can confirm Gemini 4 Argon's release timeline, but cannot make a direct age comparison without Claude Mythos Preview's release date.

Claude Mythos Preview

—

Gemini 4 Argon

Sep 30, 2026

1 weeks ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Mythos Preview and Gemini 4 Argon side-by-side, then vote on the output you prefer.

Claude Mythos Preview
✓ Preferred
Gemini 4 Argon
Open in Playground

FAQ

Common questions about Claude Mythos Preview vs Gemini 4 Argon.

Which is better, Claude Mythos Preview or Gemini 4 Argon?

Claude Mythos Preview and Gemini 4 Argon are closely matched on the LLM Stats Score at 54.4 and 55.1. Claude Mythos Preview is made by Anthropic and Gemini 4 Argon 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 Preview compare to Gemini 4 Argon in benchmarks?

Claude Mythos Preview scores CyBench: 100.0%, USAMO25: 97.6%, GPQA: 94.6%, SWE-Bench Verified: 93.9%, CharXiv-R: 93.2%. Gemini 4 Argon scores Graphwalks BFS <128k: 99.7%, Vibe Code Bench: 91.9%, LVBench: 91.7%, LABBench2: 88.8%, Graphwalks BFS >128k: 84.2%.

What are the main differences between Claude Mythos Preview and Gemini 4 Argon?

Key differences include LLM Stats Score (54.4 vs 55.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Mythos Preview and Gemini 4 Argon?

Claude Mythos Preview is developed by Anthropic and Gemini 4 Argon is developed by Google.