Claude Mythos 5.1 vs DeepSeek VL2
Claude Mythos 5.1 leads the LLM Stats Score 45.1 to 3.0.
Anthropic · DeepSeek · Updated for 2026
Which is better?
Claude Mythos 5.1 leads the overall LLM Stats Score 45.1 to 3.0, ranking #31 overall.
Claude Mythos 5.1 also accepts a larger context window (1,000,000 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 Mythos 5.1
- overall performance matters — it scores 45.1 and ranks #31 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Sep 2026
Choose DeepSeek VL2
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
1 reported for Claude Mythos 5.1 · 14 for DeepSeek VL2
Claude Mythos 5.1 and DeepSeek VL2don'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
Context Window
Maximum input and output token capacity
Claude Mythos 5.1 accepts 1,000,000 input tokens compared to DeepSeek VL2's 129,280 tokens. DeepSeek VL2 can generate longer responses up to 129,280 tokens, while Claude Mythos 5.1 is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude Mythos 5.1 and DeepSeek VL2 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Mythos 5.1
DeepSeek VL2
License
Usage and distribution terms
Claude Mythos 5.1 is licensed under a proprietary license, while DeepSeek VL2 uses deepseek.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
deepseek
Open weights
Release Timeline
When each model was launched
Claude Mythos 5.1 was released on 2026-09-01, while DeepSeek VL2 was released on 2024-12-13.
Claude Mythos 5.1 is 21 months newer than DeepSeek VL2.
Sep 1, 2026
1 weeks ago
1.7yr newerDec 13, 2024
1.7 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Claude Mythos 5.1 is available from Anthropic. DeepSeek VL2 is available from Replicate.
Claude Mythos 5.1
DeepSeek VL2
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Mythos 5.1 and DeepSeek VL2 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Mythos 5.1 vs DeepSeek VL2.