Claude Fable 5 vs Hy4 preview: Specs & Benchmark Comparison
| Characteristic | Claude Fable 5 | Hy4 preview |
|---|---|---|
| Company | Anthropic | Tencent |
| Release Date | June 9, 2026 | August 28, 2026 |
| Parameters | — | 770B |
| Multimodal | Yes | No |
| Context (input) | 1.0M | — |
| Context (output) | 128K | — |
| Input Price / 1M | $10.00 | — |
| Output Price / 1M | $50.00 | — |
| Average Score | 0.6 | 0.6 |
| Benchmarks | ||
| BioMysteryBench | 0.5 | 0.7 |
| AutomationBench | 0.2 | 0.3 |
| SWE-Bench Pro | 0.8 | 0.7 |
| Terminal-Bench 2.1 | 0.8 | 0.9 |
Visual Benchmark Comparison
Claude Fable 5
Hy4 preview
BioMysteryBench0.5 vs 0.7
0.5
0.7
AutomationBench0.2 vs 0.3
0.2
0.3
SWE-Bench Pro0.8 vs 0.7
0.8
0.7
Terminal-Bench 2.10.8 vs 0.9
0.8
0.9
Verdict
Hy4 preview leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Claude Fable 5 — 0.6, Hy4 preview — 0.6.
Recency
Hy4 preview is newer: released 8/28/2026 vs 6/9/2026.
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Frequently Asked Questions
Which is better for coding — Claude Fable 5 or Hy4 preview?
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 or Hy4 preview?
API pricing data is available on the individual model pages.
Which has a larger context window — Claude Fable 5 or Hy4 preview?
Context window data is available on the individual model pages.
The Claude Fable 5 and Hy4 preview 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 or Hy4 preview page. See also the complete list of AI model comparisons.