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FireFlash

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Machine Learning Algorithms & Natural Language Processing
Machine Learning Algorithms & Natural Language Processing
Nov 13, 2026 · Artificial Intelligence

FireFlash: 64 B300s, 5 Days, Matches Fable 5/GPT-6 Sol at 30x Lower Cost

FireFlash, a 300B-parameter terminal and coding agent trained via full-parameter RL on 64 NVIDIA B300 GPUs in under five days, achieves Terminal-Bench 4.0 Pass@1 of 46.2%—matching Fable 5 and GPT-6 Sol—while reducing per-task cost by over 30x, with gains transferring to DeepSWE and SWE-Bench benchmarks.

FireFlashGRPOReinforcement Learning
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FireFlash: 64 B300s, 5 Days, Matches Fable 5/GPT-6 Sol at 30x Lower Cost