GLM by Z.AI
Free Flash variants for everyone. Premium GLM-5 with 744B parameters and agentic coding. Strong reasoning, 200K context, zero cost to start.
Technical Specifications
GLM offers the best free-tier experience in Solaria, with premium options for power users.
| Model | Context | Access |
|---|---|---|
| GLM-4.7 | 200K | Premium |
| GLM-4.7 Flash | 200K | Free |
| GLM-5 | 200K | BYOK |
| GLM-5.1 | 200K | BYOK |
| GLM-5 Turbo | 200K | BYOK |
| GLM-4.5 | 200K | Premium |
| GLM-4.5 Flash | 200K | Free |
Use Cases
Free AI for Everyone
GLM-4.7 Flash and GLM-4.5 Flash are completely free in Solaria. No credit card, no API key — just sign up and start chatting with a capable AI model.
Coding & Development
GLM-5 is specifically optimized for coding with 744B parameters and agentic capabilities. Write, debug, and refactor code with a model trained on extensive programming corpora.
Academic Research
GLM models excel at academic writing, citation formatting, and research synthesis. The 200K context handles full research papers with references.
Agentic Workflows
GLM-5.1 and GLM-5 Turbo support sustained 8-hour execution chains, tool calling, and autonomous task completion — perfect for complex multi-step workflows.
When to choose GLM over other models
GLM is the best starting point for new Solaria users. The free Flash variants deliver solid performance for everyday tasks — writing, Q&A, summarization, and basic coding — at zero cost.
For developers, GLM-5 offers specialized coding capabilities that rival premium models. The 744B parameter model with agentic support can handle complex refactoring, testing, and architecture tasks.
Compared to Llama (the other free option), GLM tends to be more reliable for structured output and follows instructions more precisely. It is also more accessible to users in regions where Meta models have restrictions.
Benchmarks
GLM-5 competes with top-tier models despite its lower cost. Flash variants offer excellent value for free-tier users.
GLM-5.1 and GLM-5 Turbo are BYOK-only. Free Flash variants are server-hosted by Solaria.
Start with GLM Flash for Free
GLM-4.7 Flash and GLM-4.5 Flash are free for all users. No signup required for guest mode — just open Solaria Chat and select GLM.
// GLM-4.7 Flash — completely free
const response = await fetch('/api/chat/send', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
model: 'glm-4.7-flash',
messages: [
{ role: 'user', content: 'Help me write a Python script to scrape a website' }
],
}),
})Frequently Asked Questions
Is GLM really free?
Yes. GLM-4.7 Flash and GLM-4.5 Flash are completely free for all Solaria users, including guests. No credit card, no API key, no usage limits beyond the standard daily message quota. Premium GLM models (GLM-4.7, GLM-4.5, GLM-5) require a subscription or BYOK.
What is the difference between GLM-4.7 and GLM-5?
GLM-4.7 is a strong general-purpose model with 200K context, excellent for chat and documents. GLM-5 is the next-generation foundation model with 744B parameters, agentic coding capabilities, and function calling support. GLM-5 is significantly more capable for complex tasks and tool use.
Can I use GLM-5 with my own API key?
Yes. GLM-5, GLM-5.1, and GLM-5 Turbo are available via BYOK. Add your Z.AI API key in Settings → API Keys to access the full GLM-5 family with function calling and agentic capabilities.
Is GLM good for coding?
GLM-5 is specifically optimized for coding and agentic tasks. It performs well on HumanEval and other coding benchmarks. The free Flash variants are also capable of basic scripting, debugging, and explaining code. For professional software development, GLM-5 via BYOK is recommended.
Does GLM support vision or image analysis?
Currently, GLM models in Solaria focus on text-based tasks. Vision capabilities are not available for GLM at this time. For image analysis, we recommend GPT-4o, Claude, Gemini, or Kimi K2.6.
Try GLM (Z.AI) in Solaria
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