Tag: #fable-5-1

An autonomous coding workflow moving through planning, testing, recovery, and delivery

Fable 5.1 Long-Running Agents: Tests, Recovery and Cost

SandBase's Fable 5.1 evaluation design: test a billing-client upgrade across two repositories, recover from tool failures, cap retries, and count accepted-task cost.

Developer Tools September 2, 2026 anthropicclaudefable-5-1

Fable 5.1 goal-drift cover with a navigation core correcting a long task back toward its target

Why Coding Agents Forget the Goal After Dozens of Tool Calls

Why coding agents forget the goal, repeat failed fixes, and skip tests—and how to recover with a task-state record, regression checks, and a bounded restart.

Developer Tools September 2, 2026 coding-agentsagent-reliabilityprompt-caching

A neural network splitting into public and restricted access paths

Fable 5.1 vs Mythos 5.1: Pricing, Limits and Access

SandBase compares Fable 5.1 and Mythos 5.1 access, API pricing, fallback and retention. Learn why a Fable API account does not grant Mythos research permissions.

Model Comparison September 2, 2026 anthropicclaudefable-5-1

AI connecting planetary mapping, protein design, and GPU computing

Claude for Science: Venus Maps, Protein Design and GPUs

Examine Fable 5.1 and Mythos 5.1 research cases: Venus mapping, lab-tested protein binders, and GPU kernel speedups, with methods and evidence limits.

Industry Insights September 2, 2026 anthropicclaudefable-5-1

Claude Fable 5.1 release watch with EAP, routing, and official-report evidence

Claude Fable 5.1 Released: Revisiting the EAP Rumors

Claude Fable 5.1 launched on September 1. Revisit the EAP names, Claude Web routing rumors, and evidence that could not establish a model's identity.

Agent Daily News August 27, 2026 anthropicclaudefable-5-1