Together AI· Inference platform

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

Together AI compares GLM-5.3 and GPT-5.6 Sol on the DeepSWE benchmark, showing that a cascade strategy (use GLM-5.3 first, escalate to Sol on failure) solves 85.9% of tasks at a lower cost than using Sol alone.

From the source

Don't pick one. Run GLM-5.3 first, escalate to GPT-5.6 Sol when the tests fail. That cascade solves 85.9% of DeepSWE tasks at $6.61 each.

together.ai

Announced

21 Aug 2026 00:00 UTC

Detected

22 Aug 2026 05:58 UTC (+29h after)

Pricing

$3.99 per rollout for GLM-5.3, $8.37 per rollout for GPT-5.6 Sol