Z.ai
We introduce GLM-5.3-Flash, the first natively multimodal model in the GLM-5 series. With 320B total parameters and just 18B active parameters, it outperforms GLM-5.2 across benchmarks and real-world workloads at one-tenth the price, while approaching Claude Opus 4.8 on coding and agentic benchmarks.
Running this yourself: likely needs a high-memory cloud gpu.
Live access is not confirmed for this model. No current purchase price is advertised.
No current subscription pricing is tracked for this model.
Confirm this specific model, usage limits, and billing terms with the provider. A subscription does not automatically include API credits.
No login needed to compare. Prices are in USD; provider charges are separate from AI Market Cap plans. Context length, caching, tools, taxes, and regional terms can change the final cost. Open weights do not mean free hosting.
79.1
Quality Score
1273
Arena ELO
320B
Parameters
1M
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
20 of 22 public signals
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
Sign in to join the discussion
6.5M
Downloads
2.8K
Likes
Aug 2026
Released
5/5 signals
4/4 signals
4/5 signals
3/4 signals
4/4 signals
Parameters
320B
Training compute
3.2e24 FLOP
Dataset scale
30.0T units
Base model
Not reported
Source-reported access: Open weights (unrestricted) · Likely confidence
Gaps we are still tracking
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
GLM-5.3-Flash/FlashX - Overview - Z.AI DEVELOPER DOCUMENT
Navigation Models GLM-5.3-Flash/FlashX Guides API Reference Coding Plan Released Notes Terms and Policy Help Center Get Started Quick Start Overview Pricing Core Parameters SDKs Guide Migrate to GLM-5.3 Models GLM-5.3-Flash/FlashX New GLM-5.3 Hot GLM-5.2 Capabilities Thinking Mode Deep Thinking Streaming Messages Tool Streaming Output Function Calling Context Caching Structured Output Tools Web Search Stream Tool Call Agents GLM Slide/Poster Agent(beta) Translation Agent Vide
View sourceGLM-5.3 - Overview - Z.AI DEVELOPER DOCUMENT
Navigation Models GLM-5.3 Guides API Reference Coding Plan Released Notes Terms and Policy Help Center Get Started Quick Start Overview Pricing Core Parameters SDKs Guide Migrate to GLM-5.3 Models GLM-5.3-Flash/FlashX New GLM-5.3 Hot GLM-5.2 Capabilities Thinking Mode Deep Thinking Streaming Messages Tool Streaming Output Function Calling Context Caching Structured Output Tools Web Search Stream Tool Call Agents GLM Slide/Poster Agent(beta) Translation Agent Video Effect Temp
View sourcezai-org/GLM-5.3-Flash · Hugging Face
Z.ai published benchmark or leaderboard evidence for GLM-5.3-Flash.
View source1273
ELO Score
1266 - 1280
95% Confidence
+/-7 points
11.2K
Battles
Oct 12, 2026
Last Updated