Claude Fable 5.1 vs Qwen3.8 Flash Next: Specs & Benchmark Comparison
| Characteristic | Claude Fable 5.1 | Qwen3.8 Flash Next |
|---|---|---|
| Company | Anthropic | Alibaba |
| Release Date | September 1, 2026 | August 26, 2026 |
| Parameters | — | 180B |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 128K | 66K |
| Input Price / 1M | $10.00 | $0.16 |
| Output Price / 1M | $50.00 | $0.47 |
| Average Score | 0.6 | 0.7 |
Verdict
Qwen3.8 Flash Next leads in 1 out of 4 comparison categories.
Overall Performance
Both models show comparable average scores: Claude Fable 5.1 — 0.6, Qwen3.8 Flash Next — 0.7.
API Cost
Qwen3.8 Flash Next is 95.2x cheaper: input $0.16/1M vs $10.00/1M tokens.
Context Window
Same context size: 1M tokens.
Recency
Both models were released around the same time: 9/1/2026 and 8/26/2026.
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Frequently Asked Questions
Which is better for coding — Claude Fable 5.1 or Qwen3.8 Flash Next?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude Fable 5.1 or Qwen3.8 Flash Next?
Qwen3.8 Flash Next is cheaper for input: $0.16 per 1M tokens vs $10.00.
Which has a larger context window — Claude Fable 5.1 or Qwen3.8 Flash Next?
Claude Fable 5.1 supports a larger context: 1,048,576 tokens vs 1,048,576.
The Claude Fable 5.1 and Qwen3.8 Flash Next comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Fable 5.1 or Qwen3.8 Flash Next page. See also the complete list of AI model comparisons.