CognitionCognition added OpenAI's GPT-5.5 to its Devin autonomous software engineer as an Agent Preview. The update enables the agent to handle longer multi-step trajectories and resolve complex production bugs that previous models could not identify.
GPT-5.5 into Devin as an Agent Preview. This update follows the launch of the new model by OpenAI and allows the software engineer to leverage the model's improved reasoning for long-running tasks.The integration shifts the baseline for autonomous coding by extending the agent's operational loop, mirroring a broader industry shift toward autonomous reasoning models for complex engineering. While previous models might lose coherence over time, this update enables Devin to investigate and fix production issues end-to-end.
You can access the new model by selecting the GPT-5.5 Agent Preview within the Devin interface. This capability builds on recent enterprise deployments for vehicle software testing and is available to users through the standard platform login.
GPT-5.5 is now available in Devin as an Agent Preview! GPT-5.5 has set a new bar for what's possible with Devin. It runs longer and more autonomously than any GPT model we've tested, surfacing bugs no other model can catch, and investigating and fixing production issues end-to-end.
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