LiteLLM Auto Router Fusion ran three models on the same task and synthesized their work, solving 14 of 21 Terminal-Bench tasks against 9 for Claude Fable-5 alone. Total spend rose 36%, cost per solved task fell 12%, and turn latency went up 5x.
Introducing LiteLLM Fusion: 56% More Tasks Solved Than Fable 5
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September 1, 2026
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litellm