Claude Mythos 5.1 vs Qwen3-Next-80B-A3B-Base
Comparing Claude Mythos 5.1 and Qwen3-Next-80B-A3B-Base across benchmarks, pricing, and capabilities.
Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Claude Mythos 5.1 and Qwen3-Next-80B-A3B-Base trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Mythos 5.1
- you want the most recent training data — it shipped Sep 2026
Choose Qwen3-Next-80B-A3B-Base
- 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 · 0 for Qwen3-Next-80B-A3B-Base
Claude Mythos 5.1 and Qwen3-Next-80B-A3B-Basedon'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
Only Claude Mythos 5.1 specifies input context (1,000,000 tokens). Only Claude Mythos 5.1 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Claude Mythos 5.1 supports multimodal inputs, whereas Qwen3-Next-80B-A3B-Base does not.
Claude Mythos 5.1 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude Mythos 5.1
Qwen3-Next-80B-A3B-Base
License
Usage and distribution terms
Claude Mythos 5.1 is licensed under a proprietary license, while Qwen3-Next-80B-A3B-Base uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Claude Mythos 5.1 was released on 2026-09-01, while Qwen3-Next-80B-A3B-Base was released on 2025-09-10.
Claude Mythos 5.1 is 12 months newer than Qwen3-Next-80B-A3B-Base.
Sep 1, 2026
2 weeks ago
11mo newerSep 10, 2025
1.0 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Mythos 5.1 and Qwen3-Next-80B-A3B-Base side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Mythos 5.1 vs Qwen3-Next-80B-A3B-Base.