Devin adds OpenAI's new GPT-6 Astra model

Your move: Within 0.4 points of Claude Fable 5 at 64% lower cost

On September 3, 2026, Cognition added OpenAI's newly announced GPT-6 Astra model to Devin, the same window OpenAI began rolling it out in preview. On Cognition's FrontierCode 1.1 benchmark, Astra scores within 0.4 points of Claude Fable 5 while costing 64% less to run, and it set a new high score on Cognition's own internal testing benchmark: more complete test coverage, clearer reports, and better video evidence of its work.

Why it matters

If cost matters more to you than squeezing out the last bit of quality, Astra gives Devin users a cheaper model that's nearly as capable as the current best. Worth trying on a real task to see how it compares for you.

Source: Cognition ↗

Published by Agent Log. The summary reports the linked source; “Why it matters” and the verdict are Agent Log's interpretation.

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