Z.ai

GLM-5.2

A million-token model for project-scale engineering and long-horizon agents.

codingagentslong-context

Model record

GLM-5.2 model overview

GLM-5.2 is a api model from Z.ai. It was released on June 16, 2026. Its strongest case is one-million-token context, while buyers should account for downloadable-weight status and license unavailable.

GLM-5.2 benchmark snapshot

EvaluationReported scoreWhat it probes
MMLU-ProNot reportedBroad knowledge and multi-step reasoning
GPQA DiamondNot reportedGraduate-level science reasoning
SWE-bench VerifiedNot reportedVerified real-repository issue resolution
LiveCodeBenchNot reportedContamination-aware competitive programming
SWE-Bench ProNot reportedLonger, harder professional software tasks
Artificial Analysis Intelligence IndexNot reportedComposite third-party capability index; version matters

Scores are percentages reported by model creators or benchmark maintainers under varying settings. A blank is preferable to an inferred result. See our methodology.

GLM-5.2 strengths

  • One-million-token context
  • Coding and agent focus

GLM-5.2 limitations

  • Downloadable-weight status and license unavailable
  • Parameters and model-specific price unavailable
Editorial take: Benchmark rank should narrow a shortlist, not close a purchase. Run a private evaluation with representative prompts, failure cases, latency targets, and total token costs.

Source record

Specifications and scores are linked to the best source located during review. Provider-reported results are not presented as third-party lab reproductions.

Source limitation: Official release notes: https://docs.z.ai/release-notes/new-released

Read Z.ai GLM-5.2 documentation