GLM-5.3 vs Muse Spark 1.3: scores, price and which to pick

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Our take

Muse Spark 1.3 wins 3 of 4 categories and costs less: 1.1× cheaper for everyday text work. Easy pick.

Overall6168Best

Coding6875Best

Writing7070

Support6771Best

Value5462Best

Input / 1M$1.40$1.25Best

Output / 1M$4.40$4.25Best

Blended / 1M$2.15$2.00Best

Context window1M1MBest

Open weightsYesNo

Released14 Aug 20262 Sept 2026

Your monthly bill

Tasks per month50k

GLM-5.3$430

Muse Spark 1.3$400Cheapest

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