Z.ai GLM 5.3 Flash model now available with 1M-token context
In short: Z.ai's GLM 5.3 Flash, a multimodal 320B-parameter Mixture-of-Experts model with 18B active parameters, is now available through Mistral's platform. It offers a 1M-token context window and is built for developer agent workflows, visual coding, and complex tool-use tasks. Pricing is set at $0.15 per million input tokens, $0.03 per million cached input tokens, and $0.50 per million output tokens.
This summary was generated automatically by AI from Mistral Changelog's publication. It is our own text, not a copy of the original — facts, figures and quotes belong to the source, linked above and below.
What changed?
- 1New model zai-glm-5-3-flash added to the platform
- 2320B total parameters, 18B active (MoE architecture)
- 31M-token context window
- 4Multimodal, targeted at agent workflows, visual coding, and tool-use
- 5Pricing: $0.15/M input, $0.03/M cached input, $0.50/M output
| Parameter | Before | Now |
|---|---|---|
| Parameters | Not specified | 320B (18B active, MoE) |
| Context window | Not specified | 1M tokens |
| Input price | Not specified | $0.15/M tokens |
| Cached input price | Not specified | $0.03/M tokens |
| Output price | Not specified | $0.50/M tokens |
| Tool calling | Not specified | Supported, designed for complex tool-use tasks |
Why it matters
Large context windows combined with low token pricing make this model attractive for building agents that need to process long documents, codebases, or conversation histories while calling external tools.
What it means for AI agents and contact centers
If you build voice or automation agents that rely on long context (e.g. full call transcripts, CRM history, or multi-step tool calling), this model is worth comparing on latency, tool-calling reliability, and cost per request against models already in use.
🧪 Worth Testing
The combination of a 1M-token context window, MoE efficiency, and low pricing makes it a strong candidate to benchmark for agent and tool-calling workloads where context length and cost matter.
Sources
- Mistral ChangelogOfficialPrimary sourceOriginal article →„Z.ai GLM 5.3 Flash ( zai-glm-5-3-flash ) is now available. MODEL RELEASED“22 Oct 2026, 03:00
- Published by source
- 22 Oct 2026, 03:00
- Found by our system
- 22 Oct 2026, 21:30
- Summary generated
- 22 Oct 2026, 21:31
This article was written by AI from the original source. Facts, numbers and prices come from the source; missing values are marked “Not specified”. Legal notice, copyright and privacy