Together AI· Inference platform

GLM-5.3 vs. GLM-5.3 Flash on DeepSWE: Cost, Coding, and Routing

An analysis comparing GLM-5.3 and its distilled sibling GLM-5.3 Flash on the DeepSWE benchmark, finding that the Flash variant retains 94% of solved tasks at one-seventeenth the cost but loses reliability rather than capability, with a cascade strategy solving 80.9% of tasks at $1.70 each.

From the source

That cascade solves 80.9% of DeepSWE tasks at $1.70 each. GLM-5.3 alone solves 69.0% at $3.99. Twelve points better, 57% lower cost.

together.ai

Announced

28 Aug 2026 00:00 UTC

Detected

29 Aug 2026 00:14 UTC (+24h after)

Pricing

$3.99 per rollout (GLM-5.3), $0.24 per rollout (GLM-5.3 Flash)