Cognition introduced Fusion in Devin CLI—an efficient frontier harness for Fable & Astra claiming ~39% lower cost across coding benchmarks. Pick a preferred model for planning and a cost-effective model for execution.

Key Takeaways

  • ✓Fusion multi-model harness ships in Devin CLI.
  • ✓Frontier models (e.g. Fable/Astra) for planning; cheaper models for execution.
  • ✓Claims ~39% lower cost across coding benchmarks.
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Key Decision Metrics at a Glance

TL;DR Verdict
🏆 Benchmark RankRank
Claims 39% lower cost across coding benchmarks.
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in: $10 / out: $50
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🛠️ Ecosystem & IDERules
Devin 2.0 (Cognition)
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