Anthropic launched Claude Fable 5.2 and Claude Mythos 5.2, marking its second major update to the Fable model class since June, according to 9to5Mac. The release brings faster response times, reduced pricing, and upgrades for coding, reasoning, and vision tasks starting today.
Key takeaways
- Anthropic released Claude Fable 5.2 and Mythos 5.2 as its newest best-in-class AI models.
- The new models generate outputs up to 30 percent faster than the previous versions.
- Pricing is set at $8 per million input tokens and $40 per million output tokens.
- Subscribers on eligible paid plans receive extra Fable usage during launch week.
What is Claude Fable 5.2?
9to5Mac reports that Fable stands as the most capable model class in Anthropic's lineup, sitting above smaller options like Haiku, Sonnet, and Opus. Fable 5.2 follows the Fable 5.1 upgrade released in September. Testers found that the new Fable and Mythos models communicate more clearly than past versions while handling ambitious and open-ended technical work.
For coding specifically, Anthropic states that over 90 percent of the changes merged into its core codebase are written by Claude with human guidance. The model helped fix stubborn bugs in minutes and completed high-value software projects. A team of agents running an earlier version of Fable 5.2 even migrated a critical production service from Python to Rust, making the service start about 26 times faster.
How much do Anthropic AI models cost now?
The updated Fable and Mythos versions are available at a lower price point than before. Users can access them for $8 per million input tokens and $40 per million output tokens. Alongside these cost reductions, Anthropic is giving subscribers on eligible paid plans extra Fable usage.
Plans and seats that include Fable models receive one to three Fable resets based on subscription length. Also, Fable is included for up to 50 percent of weekly usage limits for Pro plans and standard seats on the Team plan. For everyday coding and knowledge tasks, Anthropic recommends starting with Claude Opus 5.5 and shifting models depending on project complexity.
What happens next?
Paid subscribers will experience immediate changes as the extra Fable usage rolls out this week. Developers and technical teams working on complex software projects can begin testing the faster and cheaper models for tasks requiring strong engineering judgment. Anyone using the wider ecosystem can also scale their usage between Opus, Sonnet, Haiku, Fable, and Mythos depending on individual workload demands.
Frequently asked questions
Claude Fable 5.2 is Anthropic's newest best-in-class AI model, released as part of the second major update to the Fable model class since June. It features improved coding, reasoning, and vision capabilities compared to past versions.
According to 9to5Mac, the new Fable 5.2 and Mythos 5.2 models are available at a price of $8 per million input tokens and $40 per million output tokens.
The new Fable 5.2 and Mythos 5.2 models generate outputs up to 30 percent faster than Claude Fable 5.1 and Claude Mythos 5.1.
For most coding and knowledge tasks, Anthropic recommends that users start with Claude Opus 5.5 as a daily driver, and then switch upward or downward depending on the complexity of their work.
Eligible paid subscribers get one to three Fable resets based on how long they have subscribed. Fable is also included for up to 50 percent of weekly usage limits for Pro plans and standard Team plan seats.
Based on reporting by 9to5Mac. Read the original article
