GPT-5.6 Sol vs GLM-5.3: scores, price and which to pick

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Our take

GLM-5.3 wins 3 of 4 categories and costs less: 3.7× cheaper for everyday text work. Easy pick.

Overall68Best61

Coding6768Best

Writing6770Best

Support6667Best

Value5454

Input / 1M$4.00$1.40Best

Output / 1M$20.00$4.40Best

Blended / 1M$8.00$2.15Best

Context window1.1MBest1M

Open weightsNoYes

Released9 Jul 202614 Aug 2026

Your monthly bill

Tasks per month50k

GPT-5.6 Sol$1.6k

GLM-5.3$430Cheapest

List prices, a quarter of the tokens as output. Scores are provisional, from Arena and Epoch AI.