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10Open weightsProvisional score

GLM-5.3

GLM-5.3

The same base as GLM-5.2, re-trained into one of the strongest open models available.

Updated

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GLM-5.3

The read

GLM-5.3 keeps GLM-5.2's base model and gets all of its gains from post-training, which lifted it into the top group of open models on both independent leaderboards. It takes a million tokens of context and is priced well below the Western flagships it now sits close to. The catch is the licence: unlike 5.2, it is published under Zhipu's own GLM-5.3 terms rather than MIT, so read them before you build a product on the weights.

Where it shines

  • Among the top open models on both independent leaderboards
  • Million-token context with 128,000 tokens of output
  • Hosted API priced well below Western flagships

Worth knowing first

  • A custom licence instead of the MIT terms GLM-5.2 carried
  • Serving it needs serious GPU capacity

Index score

87.9

Provisional. This score is read from the product's public capability, not from the one-prompt rebuild the fully reviewed entries went through, so treat it as a placing rather than a verdict.

Craft88
Speed80
Control90
Value90
Rank
10 of 73
Builds
LLMs
Category
Open weights
Output
Published weights under Zhipu's licence, plus an API
Pricing
Free tier
Best for
Frontier-class coding and agent work on weights you can hold

Scores are our own editorial judgement, weighted craft 55, speed 10, control 15 and value 20.

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