# Anthropic — Working at the frontier: How Balyasny Asset Management evaluates and governs Claude Fable 5

- Company: Anthropic (anthropic.com)
- Announced: 2026-09-17
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://claude.com/blog/working-at-the-frontier-how-balyasny-asset-management-evaluates-and-governs-claude-fable-5
- Record: https://forck.live/items/11768-working-at-the-frontier-how-balyasny-asset-management-evaluates-and-governs
- Subject: Claude
- Models affected: Claude Fable 5

Balyasny Asset Management (BAM) uses Claude Fable 5 for complex financial tasks, evaluating it on thousands of real-world tasks where it achieved 89.4% accuracy versus 86.1% for the prior model. The firm built its own platform, BAMAgent, for deploying agents with governance controls, and treats safety as a product and operating-model question rather than a one-time model-selection exercise.

## Evidence

Verbatim from https://claude.com/blog/working-at-the-frontier-how-balyasny-asset-management-evaluates-and-governs-claude-fable-5:

> Balyasny Asset Management (BAM) Chief AI Officer Charlie Flanagan on why the firm uses Claude Fable 5 and the role of safeguards in deploying frontier intelligence safely and reliably across the organization.

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