Claude Fable 5.1 vs ConvAI Laya

A direct, empirical evaluation of Claude Fable 5.1 (Anthropic) against ConvAI Laya (ConvAI Innovations (Vishal Mysore / visrow)).

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.

ConvAI Laya

Developed by ConvAI Innovations (Vishal Mysore / visrow) · 421 Million (ModernBERT-large Backbone) parameters

Client-side in-browser decision execution via WebGPU/WASM, zero-cost operational routing, private on-device medical/financial triage, and domain-specific fine-tuning.

Metric Claude Fable 5.1 ConvAI Laya
SWE-bench Verified 82.8% 64.2%
MMLU-Pro 92.4% 82.4%
MATH-500 97.9% 88.5%
Context Window 1,500,000 tokens 8,192 tokens
Input Pricing (per 1M) $12.00 $0.00
Output Pricing (per 1M) $60.00 $0.00