Claude Sonnet 4.5 vs Qwen3.7 Flash
At a Glance
| Compare | Claude Sonnet 4.5Anthropic |  Qwen3.7 FlashQwen |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #36 of 4627.7 score · 2/3 sources · provisional · missing LiveBench · full-core range 18.5–51.8 | UnrankedNot in the 46-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $3.00Anthropic ↗ · Sep 3, 2026 | $0.030Openrouter ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | $15.00Anthropic ↗ · Sep 3, 2026 | $0.13Openrouter ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 200K | 1,000K |
| Model facts checked | Sep 3, 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 Sonnet 4.5 | Qwen3.7 Flash |
|---|---|---|
| Developer | Anthropic | Qwen |
| Family | Claude 4 | Qwen3 7 |
| Model | Claude Sonnet 4.5 | Qwen3.7 Flash |
| Version | Claude Sonnet 4.5 | Qwen3.7 Flash |
| Lifecycle | active | active |
| Released | 2025-09-29 | 2026-07-15 |
| Knowledge cutoff | 2025-01-01 | Unknown |
| Input modalities | Text, Image | Text, Image, Video |
| Output modalities | Text | Text |
| Context window | 200K | 1,000K |
| 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 (Standard) | Alibaba Cloud Model Studio (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | agents, chat, generation, reasoning, structured_outputs, tools, vision |
Claude Sonnet 4.5 Capabilities
Qwen3.7 Flash Capabilities
Related Comparisons
All image comparisons →| A | Pair | B | Context |
|---|---|---|---|
Claude Sonnet 4.5Anthropic | vs |  GPT-6 AstraOpenAI | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs | Claude Sonnet 4.5Anthropic | family variantsimage, text |
Claude Sonnet 4.5Anthropic | vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
Claude Sonnet 4.5Anthropic | vs |  DeepSeek-V4.1-FlashDeepSeek | cross-developer peersimage, text |
Claude Sonnet 4.5Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
Claude Sonnet 4.5Anthropic | vs | Qwen3.8-MaxQwen | cross-developer peersimage, text |
Claude Sonnet 4.5Anthropic | vs |  Kimi-K3Moonshot AI | cross-developer peersimage, text |
 MiniMax-M3MiniMax | vs | Claude Sonnet 4.5Anthropic | cross-developer peersimage, text |
Claude Sonnet 4.5Anthropic | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Claude Sonnet 4.5Anthropic | vs |  Hy4 previewTencent | cross-developer peerstext |
Claude Sonnet 4.5Anthropic | vs | Seed 2.1 ProByteDance Seed | cross-developer peersimage, text |
Claude Sonnet 4.5Anthropic | vs |  Mistral Large 3Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Sonnet 4.5 vs Qwen3.7 Flash FAQs
Is Claude Sonnet 4.5 or Qwen3.7 Flash better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Sonnet 4.5 and Qwen3.7 Flash, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Sonnet 4.5 or Qwen3.7 Flash?+
Claude Sonnet 4.5 is $3.00 and Qwen3.7 Flash is $0.030 per million tokens, so Qwen3.7 Flash is cheaper on this metric. Claude Sonnet 4.5 is $15.00 and Qwen3.7 Flash is $0.13 per million tokens, so Qwen3.7 Flash is cheaper on this metric.
Which has a larger context window, Claude Sonnet 4.5 or Qwen3.7 Flash?+
Qwen3.7 Flash has the larger sourced context window. Claude Sonnet 4.5 supports 200K and Qwen3.7 Flash supports 1,000K.
Which performs better in benchmarks, Claude Sonnet 4.5 or Qwen3.7 Flash?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Sonnet 4.5 or Qwen3.7 Flash be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Sonnet 4.5 is not marked open weight; Qwen3.7 Flash is not marked open weight.
Can Claude Sonnet 4.5 and Qwen3.7 Flash understand images?+
Claude Sonnet 4.5 is documented with image input; Qwen3.7 Flash is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Sonnet 4.5 or Qwen3.7 Flash?+
Qwen3.7 Flash has the larger sourced maximum output: Claude Sonnet 4.5 supports 64K and Qwen3.7 Flash supports 66K output tokens.
Do Claude Sonnet 4.5 and Qwen3.7 Flash support reasoning and tool use?+
Claude Sonnet 4.5: reasoning, tool calling, and image input. Qwen3.7 Flash: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Sonnet 4.5 or Qwen3.7 Flash?+
Claude Sonnet 4.5 has 1 sourced provider route; Qwen3.7 Flash has 2, so Qwen3.7 Flash has broader tracked availability.
Which offers better value, Claude Sonnet 4.5 or Qwen3.7 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.