Devin Fusion

Devin Fusion is a multi-model harness developed by Cognition that integrates frontier-level AI models with cost-effective 'sidekick' agents, achieving 35% lower costs while maintaining high performance in software development tasks.

Devin Fusion is a multi-model harness developed by Cognition that integrates frontier-level AI models with cost-effective 'sidekick' agents, achieving 35% lower costs while maintaining high performance in software development tasks.

• 01Hybrid-model approach combining frontier-level AI models with cost-effective 'sidekick' agents
• 0235% reduction in costs while maintaining high performance in software development tasks
• 03Dynamic mid-session routing for seamless model switching during task execution
• 04Superior performance on the FrontierCode benchmark with a score of 57.6 at $3.00 per task
• 05Addresses challenges in model routing, such as overfitting to specific benchmarks and inefficient cache usage