Claude Fable 5.1 vs ElevenLabs Eleven V4 & V4 Turbo
A direct, empirical evaluation of Claude Fable 5.1 (Anthropic) against ElevenLabs Eleven V4 & V4 Turbo (ElevenLabs).
Claude Fable 5.1
Developed by Anthropic · Proprietary Frontier parameters
Full-repository software refactoring, agentic tool workflows, formal verification, and 1.5M-token needle retrieval.
ElevenLabs Eleven V4 & V4 Turbo
Developed by ElevenLabs · Frontier Neural Acoustic Waveform Transformer parameters
Real-time conversational voice agents (<80ms latency), 90-language studio voice cloning, granular emotional tags (<whisper>, <shout>), and 48kHz production voice synthesis.
| Metric | Claude Fable 5.1 | ElevenLabs Eleven V4 & V4 Turbo |
|---|---|---|
| SWE-bench Verified | 82.8% | 0% |
| MMLU-Pro | 92.4% | 0% |
| MATH-500 | 97.9% | 0% |
| Context Window | 1,500,000 tokens | 128,000 characters |
| Input Pricing (per 1M) | $12.00 | $0.15 |
| Output Pricing (per 1M) | $60.00 | $0.30 |