GLM-5.2
UnclaimedOpen-weights coding LLM from Z.ai with a 1M-token context, MIT-licensed.
Visit WebsiteThe Bottom Line
Entry price
Free plan available, paid tiers above
Biggest pro
Open weights under a permissive MIT license; download, fine-tune, and self-host freely
Biggest con
Running the full 753B model locally needs serious GPU hardware
TL;DR - GLM-5.2
- Open-weights coding LLM from Z.ai (formerly Zhipu AI), MIT-licensed and free to self-host from Hugging Face.
- 753 billion parameters with a 1-million-token context window, tuned for long-horizon autonomous coding.
- Scores 62.1 on SWE-bench Pro, ahead of GPT-5.5 (58.6), at about one-sixth the cost.
What is GLM-5.2?
Pros & Cons
Pros
- Open weights under a permissive MIT license; download, fine-tune, and self-host freely
- 1-million-token context window for large codebases and long agent runs
- Strong coding benchmarks (SWE-bench Pro 62.1, Terminal-Bench 2.1 81.0)
- Roughly one-sixth the cost of comparable proprietary models
- Runs in 20+ coding environments plus the Z.ai API
Cons
- Running the full 753B model locally needs serious GPU hardware
- The hosted Z.ai API routes data through a China-based provider, a compliance consideration for some teams
- Newer model with a smaller tooling ecosystem than OpenAI or Anthropic
Key Features
Pricing Plans
Free TrialPricing checked Jun 26, 2026
Free
Free
- 1 user
- 1 project
- 100 MB storage
- Basic features
Basic
$10 / month
- 5 users
- 5 projects
- 1 GB storage
- Advanced features
Pro
$25 / month
- Unlimited users
- Unlimited projects
- 10 GB storage
- All features
- Priority support
How GLM-5.2's pricing compares
At $10/mo, GLM-5.2 is mid-range of its 3 direct competitors ($9.6 to $20/mo across the set).
Entry paid plan, monthly. Pricing checked Jun 26, 2026.
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GLM-5.2 FAQ
What specific large language model powers the Z.ai platform?
How does Z.ai ensure its AI agent provides context-aware responses?
Can Z.ai's agent perform actions beyond just answering questions?
What kind of businesses would benefit most from implementing Z.ai?
Is Z.ai primarily for external customer support or can it be used for internal applications?
What is the primary benefit of using Z.ai compared to traditional rule-based chatbots?
Source: z.ai