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Together AI reported DeepSWE benchmark results comparing GLM-5.3 with GPT-5.6 Sol and Claude Fable 5, including a proposed two-model routing approach

Benchmark result Provisional 74% confidence first seen

Together AI published comparisons of GLM-5.3 against GPT-5.6 Sol and Claude Fable 5 on the DeepSWE coding benchmark. The coverage describes GLM-5.3 as achieving better cost-to-solve tradeoffs and, in one setup, improving overall success by routing to a second model only after verification fails.

Claude Fable 5 DeepSWE GLM-5.3 GPT-5.6 Sol OpenAI 904 GPT-5.5 GPT-5.6 Luna GPT-5.6 Terra Gemini 3.5 Flash

Source coverage

GPT 5.6 Sol is the best "vision" model OpenAI ever released Roboflow Blog newsletter GLM-5.3 vs. Claude Fable 5 on DeepSWE: Cost, Coding, and Routing Together AI GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing Together AI

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