Claude Mythos 5.1 vs Qwen3 VL Flash
At a Glance
| Compare | Claude Mythos 5.1Anthropic |  Qwen3 VL FlashQwen |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $10.00Anthropic ↗ · Sep 2, 2026 | Not reported |
| Output priceFrom · USD / 1M tokens | $50.00Anthropic ↗ · Sep 2, 2026 | Not reported |
| Context windowMaximum documented tokens | 1,000K | 262K |
| Model facts checked | Sep 2, 2026View model evidence → | Sep 3, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Claude Mythos 5.1 | Qwen3 VL Flash |
|---|---|---|
| Developer | Anthropic | Qwen |
| Family | Claude 5 1 | Qwen3 VL |
| Model | Claude Mythos 5.1 | Qwen3 VL Flash |
| Version | Claude Mythos 5.1 | Qwen3 VL Flash |
| Lifecycle | active | active |
| Released | 2026-09-01 | 2026-01-22 |
| Knowledge cutoff | 2026-06-01 | Unknown |
| Input modalities | Text, Image | Text, Image, Video |
| Output modalities | Text | Text |
| Context window | 1,000K | 262K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Anthropic (Project Glasswing) | Alibaba Cloud Model Studio (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, structured_outputs, tools, vision |
Claude Mythos 5.1 Capabilities
Qwen3 VL Flash Capabilities
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Claude Mythos 5.1Anthropic | vs |  Hy4 previewTencent | cross-developer peerstext |
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Claude Mythos 5.1Anthropic | vs |  Mistral Large 3Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Mythos 5.1 vs Qwen3 VL Flash FAQs
Is Claude Mythos 5.1 or Qwen3 VL Flash better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Mythos 5.1 and Qwen3 VL Flash, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Mythos 5.1 or Qwen3 VL Flash?+
Claude Mythos 5.1 is $10.00 and Qwen3 VL Flash is $0.15 per million tokens, so Qwen3 VL Flash is cheaper on this metric. Claude Mythos 5.1 is $50.00 and Qwen3 VL Flash is $1.50 per million tokens, so Qwen3 VL Flash is cheaper on this metric.
Which has a larger context window, Claude Mythos 5.1 or Qwen3 VL Flash?+
Claude Mythos 5.1 has the larger sourced context window. Claude Mythos 5.1 supports 1,000K and Qwen3 VL Flash supports 262K.
Which performs better in benchmarks, Claude Mythos 5.1 or Qwen3 VL Flash?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Mythos 5.1 or Qwen3 VL Flash be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Mythos 5.1 is not marked open weight; Qwen3 VL Flash is not marked open weight.
Can Claude Mythos 5.1 and Qwen3 VL Flash understand images?+
Claude Mythos 5.1 is documented with image input; Qwen3 VL Flash is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Mythos 5.1 or Qwen3 VL Flash?+
Neither has a larger sourced maximum output. Claude Mythos 5.1 is 128K and Qwen3 VL Flash is —.
Do Claude Mythos 5.1 and Qwen3 VL Flash support reasoning and tool use?+
Claude Mythos 5.1: reasoning, tool calling, and image input. Qwen3 VL Flash: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Mythos 5.1 or Qwen3 VL Flash?+
Claude Mythos 5.1 has 1 sourced provider route; Qwen3 VL Flash has 1, a tie.
Which offers better value, Claude Mythos 5.1 or Qwen3 VL Flash?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.