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Zhipu AI

GLM-5.3

AOpen

Zhipu AI's new-generation flagship model released on August 14, 2026, with 743B parameters. Built on the same base as GLM-5.2, its coding capability is improved by 50% over GLM-5.2 through post-training scaling (IndexShare, SAO, and the open-source Slime reinforcement learning framework). It ranks first among open-source models on Terminal Bench 3.0 and Agents' Last Exam (CLI), with agent capabilities on par with Kimi K3, Claude Opus 4.8, and Claude Fable 5. It is now available to all users of ZCode, AutoClaw, and the GLM Coding Plan; full weights will be open-sourced within two weeks, and the API is coming soon.

API Pricing

Input

$1.4

Output

$4.4

Cached input

$0.26

Peak hours

—

USD / 1M tokens

※ Overseas pricing (Z.ai official pricing page https://docs.z.ai/guides/overview/pricing, reviewed on 2026-10-24): $1.4 input / $4.4 output per million tokens (cache hit $0.26, cache storage free for a limited time).

Price sourcedocs.z.ai ↗cloud.tencent.com ↗· verified 2026-10-24

No price change in the last two snapshots

Price history

12 snapshots · 2026-04-28 → 2026-08-17

Current: $12Period low: $12 (2026-04-28)Period high: $12 (2026-04-28)First tracked: $12 (2026-04-28)

Specifications

Context window
200K Tokens
Max output
128K Tokens
Total parameters
743B
Architecture
MoE
Input modalities
Text
License
MIT

Overall score

Total

62.1

Rank

#9

Tier

A

Data confidence

94%

Capability79
Scale29
Value64
Context40.8
Ecosystem70
Freshness67.8

Capabilities & use cases

Terminal_Bench_3.0 Open-source #1Agents_Last_Exam_CLI Open-source #1

Key capabilities

  • Post-training scaling (Slime RL framework)
  • Agentic Engineering
  • GLM Coding Plan integration

Best for

  • AI coding (coding platforms such as ZCode/Claude Code)
  • Long-horizon agent tasks
  • Complex software engineering
  • Open-source private deployment

Official links

Website ↗API platform ↗Pricing page ↗Open in comparator ↗

Same vendor

GLM-5.3-FlashGLM-5.1GLM-4.6

Similar price

Meta Muse Spark 1.3 $4.25Gemini 3.8 Flash $4.125Kimi K2.7 Code $4GPT-6.1 Terra $5Gemini 3.6 Flash $3.75Kimi K2.6 $3.41

FAQ

What does GLM-5.3 cost?
GLM-5.3 is priced at $4.4 output and $1.4 input (USD per 1M tokens)
How large is the context window of GLM-5.3?
GLM-5.3 has a 200K Tokens context window with up to 128K Tokens output.
Where can I access GLM-5.3?
Official channels: Website and API platform.

Data is refreshed daily and cross-checked against two independent sources; please confirm pricing and specs on the vendor page.