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Head-to-head

Claude Fable 5 vs GPT-6.1 Sol

As of October 25, 2026, GPT-6.1 Sol leads Claude Fable 5 on the Analyzer Index, 93.4 to 93.0.

Normalized scores are min-maxed per benchmark across all models we track (0–100). Open the interactive compare view to add benchmarks to the radar chart or pull in more models.

Claude Fable 5
Anthropic
GPT-6.1 Sol
OpenAI
At a glanceClaude Fable 5GPT-6.1 Sol
Analyzer Index93.0 (5/13)93.4 (5/13)
Blended price$20.00/M$2.00/M
Cheapest hostmaker's APImaker's API
Context1.0M1.1M
Output speed—50 tok/s
Time to first token—1.77 s
BenchmarkClaude Fable 5GPT-6.1 Sol
Chatbot Arena Elo

Arena

Output Speed

Speed

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Time to First Token

TTFT

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SimpleQA Verified

SimpleQA

OTIS Mock AIME 2024-2025

OTIS AIME

ARC-AGI 2

ARC-AGI 2

Frontier Composite

Frontier

Output Stability

Stability

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Format Adherence

Format

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Recovery Rate

Recovery

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API Success Rate

API OK

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Safety Handling

Safety

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Methodology matches the main AI Model Analyzer About page.