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OpenRouter•June 12, 2026
Fusion
Featured on Blog
Paid
AI
OpenRouter
Fusion
Multi-model analysis
Featured
🔥 This release made it to our blog
Cognition Details Devin Fusion: A Hybrid-Model Harness for Agentic Coding
Cognition's new Devin Fusion architecture uses parallel agents and dynamic mid-session routing to reduce frontier model coding costs by 35 percent.
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### TL;DR
Fusion is an AI tool developed by OpenRouter that synthesizes the outputs of multiple models to deliver superior performance on complex research tasks. By combining diverse model perspectives, Fusion consistently outperforms individual models, achieving beyond-frontier performance even with budget panels. It is accessible via a single API call, allowing users to leverage the combined strengths of various models seamlessly.
Key Insights & Metrics
Pricing
Total token cost of all chosen panel models running in parallel, plus the token cost of the judge model synthesizing the final output
Cost structure
Version
1.0
Current release version
Hardware
No local hardware required
Compute requirements
Category
Paid
Licensing model
Region
United States
Primary region
Key Features
- Synthesizes outputs from multiple models
- Achieves beyond-frontier performance
- Accessible via a single API call
- Enhances performance on complex research tasks
- Demonstrates cost-effective solutions with budget panels
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