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Claude Fable 5.1 (Low, Default Fallback)

Benchmark scores, pricing, speed and comparisons for Claude Fable 5.1 (Low, Default Fallback).

Key scores

Intelligence46.8Index score
Coding75.2Index score
Speed68.3Tokens/sec

Claude Fable 5.1 is an AI model developed by Anthropic and released on September 1, 2026. This model features adaptive reasoning capabilities with low effort and default fallback settings. In terms of performance metrics, it achieves an intelligence index of 58.1 and a coding index of 75.2. Benchmark results for the model include a GPQA score of 0.881, an HLE score of 0.489, a SciCode score of 0.557, and an LCR score of 0.793333333333333. Regarding operational speed, the model provides an output speed of 42.912 tokens per second with a time to first token of 2.639 seconds. Pricing is structured at $10.00 per million input tokens and $50.00 per million output tokens, resulting in a blended rate of $20.00 per million tokens.

No benchmark data available for this model.

Comparisons with Claude Fable 5.1 (Low, Default Fallback)

Generated Franklin AI comparison pages for this model.

Model ComparisonClaude Fable 5.1: Adaptive Reasoning Trade-offsAnthropic’s Claude Fable 5.1 offers two distinct operational modes: Low Effort and Max Effort. While both share identical pricing, they diverge significantly in reasoning capability and latency, forcing a choice betweenModel ComparisonClaude Fable 5.1 vs. Grok 4.6: Comparative AnalysisThis analysis evaluates the performance, cost structures, and benchmark capabilities of Anthropic’s Claude Fable 5.1 and SpaceXAI’s Grok 4.6. While both models demonstrate high-level coding and reasoning proficiency, theModel ComparisonClaude Fable 5.1 vs. Qwen3.8 Max: A Comparative AnalysisClaude Fable 5.1 and Qwen3.8 Max represent the latest in high-performance AI, offering identical intelligence indices but diverging significantly in coding proficiency, latency, and cost structure. Choosing between themModel ComparisonMiMo-V2.6-Flash vs Claude Fable 5.1 (Adaptive Reasoning, Low Effort, Default Fallback)MiMo-V2.6-Flash and Claude Fable 5.1 (Adaptive Reasoning, Low Effort, Default Fallback) are compared across intelligence, coding, math, speed, pricing, and benchmark coverage.Model ComparisonGLM-5.3 vs. Claude Fable 5.1: Balancing Efficiency and ReasoningThis comparison evaluates the GLM-5.3 (low) and Claude Fable 5.1, analyzing their performance, cost structures, and benchmark capabilities to help users determine which model best aligns with their specific operational rModel ComparisonDeepSeek V4.1 Flash vs. Claude Fable 5.1: A Comparative AnalysisThis comparison evaluates the performance, cost-efficiency, and benchmark capabilities of DeepSeek V4.1 Flash and Claude Fable 5.1. While DeepSeek offers high-speed, low-cost utility, Claude Fable 5.1 provides significan