Z.ai Releases GLM-5.3 API
Z.ai made its GLM-5.3 API available for coding, cybersecurity, and agent tasks at the same price as the prior version.
Z.ai posted that the GLM-5.3 API is now live. The model is built for coding, defensive cybersecurity, and long-horizon agentic tasks. Pricing matches GLM-5.2 and access runs through the official API plus partner gateways. Posts from Artificial Analysis report the model scoring 60 on the Artificial Analysis Intelligence Index and tying Kimi K3. Separate updates note Terminal-Bench 3.0 accuracy rising from 4.6 percent on GLM 5.2 to 32.4 percent, plus a 246-point Elo gain to 1770 on GDPval-AA v2. The company retweeted several of these benchmark notes.
GLM-5.3 API is now live. - Built for coding, defensive cybersecurity, and long-horizon agentic tasks - Priced the same as GLM-5.2 - Available via the official API and partner model gateways Get started:
Reactions from ranked influencers
14 postsPhenomenal But, as great as it is, they are overfocusing on SWE a little. Slight regression on CritPt. Kimi K3 is still the holistically strongest Chinese model.
GLM-5.3 scores 60 on the Artificial Analysis Intelligence Index. While GLM is best known for its coding capabilities, its strengths extend far beyond coding. GLM-5.3 delivers significant improvements in reasoning, general chat, and specialized domains such as law and finance.
GLM-5.3 achieves an ELO of 1770 from 1524 to 1770, a 246-point jump from its predecessor.
GLM-5.3 achieves 60 on the Artificial Analysis Intelligence Index, on par with Kimi K3 and up 7 points from GLM-5.2. Once the weights are released it will be tied as the leading open weights model @Zai_org has just launched GLM-5.3, which ties Kimi K3 (60) for the most…
GLM-5.3 improves in AA-Omniscience (4 to 14), primarily driven by an increase in accuracy (23% to 34%)
Full results across the Artificial Analysis Intelligence Index:
Artificial Analysis Index = 60
GLM-5.3 API is now live. - Built for coding, defensive cybersecurity, and long-horizon agentic tasks - Priced the same as GLM-5.2 - Available via the official API and partner model gateways Get started:
