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Fable 5

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AI Costs Go Pay-Per-Use: Fable 5, GPT-5.5 Pro, and Gemini 3.5 Flash Redefine Pricing
technology3 hours ago

AI Costs Go Pay-Per-Use: Fable 5, GPT-5.5 Pro, and Gemini 3.5 Flash Redefine Pricing

AI pricing is diverging as major models shift to usage-based costs: Anthropic's Fable 5 moves to pay-as-you-go on June 23 at $10 per million input tokens and $50 per million output tokens (subscription allowances may be reinstated later), OpenAI's GPT-5.5 Pro costs $5 per million input tokens and $30 per million output tokens via API, and Gemini 3.5 Flash offers $1.50 per million input tokens and $9 per million output tokens (with a free tier). Costs depend on task complexity, with long-running, multi-step tasks driving higher bills, so users should compare plans and read fine print before choosing.

Anthropic Opens Safer Claude Fable 5 to the Public, Keeps Mythos 5 Behind Guardrails
technology2 days ago

Anthropic Opens Safer Claude Fable 5 to the Public, Keeps Mythos 5 Behind Guardrails

Anthropic released Fable 5, the public, safety-focused version of Claude Mythos, for broad use with safeguards, while Mythos 5 remains gated for select organizations via Project Glasswing due to cybersecurity concerns; sensitive queries go to the lower-tier Opus 4.8. About 200 organizations in 15+ countries have access, with extensive red-teaming and bug-bounty work, and collaboration with the U.S. government on testing. The model carries a price of $10 per million input tokens and $50 per million output tokens, and compute capacity includes SpaceX/xAI arrangements.