Model Comparison

Claude Mythos Preview vs Kimi K2.6

Claude Mythos Preview significantly outperforms across most benchmarks. Kimi K2.6 is 29.2x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

9 benchmarks

Claude Mythos Preview outperforms in 9 benchmarks (BrowseComp, CharXiv-R, GPQA, Humanity's Last Exam, OSWorld-Verified, SWE-bench Multilingual, SWE-Bench Pro, SWE-Bench Verified, Terminal-Bench 2.0), while Kimi K2.6 is better at 0 benchmarks.

Claude Mythos Preview significantly outperforms across most benchmarks.

Sat May 09 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Kimi K2.6 costs less

For input processing, Claude Mythos Preview ($25.00/1M tokens) is 26.3x more expensive than Kimi K2.6 ($0.95/1M tokens).

For output processing, Claude Mythos Preview ($125.00/1M tokens) is 31.3x more expensive than Kimi K2.6 ($4.00/1M tokens).

In conclusion, Claude Mythos Preview is more expensive than Kimi K2.6.*

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

Lowest available price from all providers

Sat May 09 2026 • llm-stats.com

Claude Mythos Preview

Input tokens$25.00

Output tokens$125.00

Best providerAnthropic

Kimi K2.6

Input tokens$0.95

Output tokens$4.00

Best providerUnknown Organization

Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Only Kimi K2.6 specifies input context (262,144 tokens). Only Kimi K2.6 specifies output context (262,144 tokens).

Claude Mythos Preview

Input- tokens

Output- tokens

Kimi K2.6

Input262,144 tokens

Output262,144 tokens

Sat May 09 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Mythos Preview and Kimi K2.6 support multimodal inputs.

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

Claude Mythos Preview

Text

Images

Audio

Video

Kimi K2.6

Text

Images

Audio

Video

License

Usage and distribution terms

Claude Mythos Preview is licensed under a proprietary license, while Kimi K2.6 uses Modified MIT License.

License differences may affect how you can use these models in commercial or open-source projects.

Claude Mythos Preview

Proprietary

Closed source

Kimi K2.6

Modified MIT License

Open weights

Release Timeline

When each model was launched

Kimi K2.6 was released on 2026-04-20, while Claude Mythos Preview's release date is not specified.

We can confirm Kimi K2.6's release timeline, but cannot make a direct age comparison without Claude Mythos Preview's release date.

Claude Mythos Preview

—

Kimi K2.6

Apr 20, 2026

2 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

Provider Availability

Claude Mythos Preview is available from Anthropic. Kimi K2.6 is available from Moonshot AI, Novita.

Claude Mythos Preview

Anthropic

Input Price:Input: $25.00/1MOutput Price:Output: $125.00/1M

Kimi K2.6

Unknown Organization

Input Price:Input: $0.95/1MOutput Price:Output: $4.00/1M

Novita

Input Price:Input: $0.95/1MOutput Price:Output: $4.00/1M

* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Claude Mythos Preview

View details

Anthropic

Higher BrowseComp score (86.9% vs 86.3%)

Higher CharXiv-R score (93.2% vs 86.7%)

Higher GPQA score (94.6% vs 90.5%)

Higher Humanity's Last Exam score (64.7% vs 36.4%)

Higher OSWorld-Verified score (79.6% vs 73.1%)

Higher SWE-bench Multilingual score (87.3% vs 76.7%)

Higher SWE-Bench Pro score (77.8% vs 58.6%)

Higher SWE-Bench Verified score (93.9% vs 80.2%)

Higher Terminal-Bench 2.0 score (82.0% vs 66.7%)

Kimi K2.6

View details

Moonshot AI

Larger context window (262,144 tokens)

Less expensive input tokens

Less expensive output tokens

Has open weights

Detailed Comparison

AI Model Comparison Table
Feature	Claude Mythos Preview	Kimi K2.6

FAQ

Common questions about Claude Mythos Preview vs Kimi K2.6.

Which is better, Claude Mythos Preview or Kimi K2.6?

Claude Mythos Preview significantly outperforms across most benchmarks. Claude Mythos Preview is made by Anthropic and Kimi K2.6 is made by Moonshot AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Mythos Preview compare to Kimi K2.6 in benchmarks?

Claude Mythos Preview scores CyBench: 100.0%, USAMO25: 97.6%, GPQA: 94.6%, SWE-Bench Verified: 93.9%, CharXiv-R: 93.2%. Kimi K2.6 scores V*: 96.9%, AIME 2026: 96.4%, MathVision: 93.2%, HMMT Feb 26: 92.7%, GPQA: 90.5%.

Is Claude Mythos Preview cheaper than Kimi K2.6?

Kimi K2.6 is 26.3x cheaper for input tokens. Claude Mythos Preview costs $25.00/M input and $125.00/M output via anthropic. Kimi K2.6 costs $0.95/M input and $4.00/M output via moonshot.

What are the context window sizes for Claude Mythos Preview and Kimi K2.6?

Claude Mythos Preview supports an unknown number of tokens and Kimi K2.6 supports 262K 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 Preview and Kimi K2.6?

Key differences include input pricing ($25.00 vs $0.95/M), licensing (Proprietary vs Modified MIT License). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Mythos Preview and Kimi K2.6?

Claude Mythos Preview is developed by Anthropic and Kimi K2.6 is developed by Moonshot AI.