What happened: GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing

GLM-5.3 and GPT-5.6 Sol compared on DeepSWE coding tasks: Sol wins first attempt at 72.7%, GLM-5.3 wins retries at 87.6% pass@4, costs half as much.

Why it matters: GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing

Engineering teams choosing between models for software engineering tasks, especially those tolerating retries or operating under budget constraints rather than latency constraints.

Watch out: GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing

Results are specific to DeepSWE benchmark and this particular test run. Sol has 20% regression rate versus GLM-5.3's 11%, requiring different verification strategies before deployment.

In the news

GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing

Together AI · Published August 21, 2026 · 3 min read

In 30 seconds

What happened: GLM-5.3 and GPT-5.6 Sol compared on DeepSWE coding tasks: Sol wins first attempt at 72.7%, GLM-5.3 wins retries at 87.6% pass@4, costs half as much.
Why it matters: Engineering teams choosing between models for software engineering tasks, especially those tolerating retries or operating under budget constraints rather than latency constraints.
Watch out: Results are specific to DeepSWE benchmark and this particular test run. Sol has 20% regression rate versus GLM-5.3's 11%, requiring different verification strategies before deployment.

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