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Anthropic releases Fable 5.2 and Mythos 5.2 with 30% speed boost and 20% price cut

·2026.11.15 10:10

Key point

New models offer $8/$40 per million token pricing and outperform Opus 5.5 on FrontierCode 2.0, while Claude gains meeting participation and spreadsheet capabilities.

Details

  • Anthropic released Fable 5.2 and Mythos 5.2, featuring output up to 30% faster than 5.1 and pricing reduced by 20% to $8 per million input tokens and $40 per million output tokens.
  • Fable 5.2 scored 49.1% on FrontierCode 2.0, surpassing Opus 5.5's 45.5%, though a preregistered benchmark by Garry Tan found Opus 5.5 remains the cost-effective default for coding at $0.65 per solved task versus $1.83 for Fable 5.2.
  • Claude Meetings allows the AI to join Google Video calls as a visible participant, generating notes, action items, and transcripts directly on claude.ai.
  • New artifact types include Sheets for spreadsheet creation, Whiteboards for meeting summaries, and Data for connecting to tools like Snowflake and Salesforce, with Sheets and Whiteboards currently in beta on paid plans.
  • Custom themes in the Claude Code desktop app allow users to generate visual mods via natural language descriptions, available for local sessions on version 2.1.324 and later.
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