Anthropic’s new Fable release is cheaper, less restrictive

Fable 5.1 includes changes meant to reduce token cost and false-positive restrictions from the model's safeguards.

The top 3

  1. Anthropic Fable 5.1's Reduced Cache Read Pricing: Anthropic's Claude Fable 5.1, priced at $10/M input and $50/M output tokens, significantly reduces cache read costs by 75% to $0.25/M tokens, leading to an estimated 25% to 45% overall cost reduction for typical and highly agentic workloads.
  2. OpenAI's GPT-5.6 Luna: Leading Low-Cost Option: OpenAI's GPT-5.6 Luna is a highly cost-effective LLM, with pricing at $0.20 per million input tokens and $1.20 per million output tokens, making it the cheapest mainstream LLM API for high-volume, low-budget workloads after a significant price cut in July 2026.
  3. Google Gemini Flash Models for Speed and Value: Google's Gemini Flash models, such as Gemini 2.5 Flash and 3.6 Flash, offer strong cost-effectiveness, with Gemini 2.5 Flash priced at $0.25/M input and $1.50/M output tokens, making them suitable for speed-sensitive and volume-sensitive coding workloads.

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