Devin Ultra tops FrontierCode with Fable 5

// 2h agoPRODUCT UPDATE

Devin Ultra tops FrontierCode with Fable 5

Cognition has integrated Anthropic's new Claude Fable 5 model into Devin via the new Cloud Ultra agent, which achieved the top spot on the FrontierCode benchmark. The new agent is optimized for long-horizon tasks and debugging, priced at a 40% premium over the default Devin agent.

// ANALYSIS

The integration of Claude Fable 5 underscores the trend where the capabilities of AI coding agents are heavily bound to the reasoning strengths of underlying foundation models.

–The new Ultra agent offers a significant performance boost for complex, multi-step tasks like debugging and planning.
–Achieving the top spot on FrontierCode validates Devin's focus on code mergeability and real-world usefulness over theoretical coding tests.
–A 40% cost premium for a major tier upgrade represents aggressive optimization of the model harness, aiming to drive enterprise adoption.

// TAGS

devincognitionclaudefable-5agentsoftware-engineeringcoding-assistant

DISCOVERED

2h ago

2026-06-09

PUBLISHED

3h ago

2026-06-09

RELEVANCE

8/ 10

AUTHOR

cognition

// KEEP READING

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