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LLMS • CURATED • UPDATED SEP 4, 2026

GLM-5.3

Chinese frontier model from Zhipu AI, competitive with top open-weight models, API-only

GLM-5.3 is Zhipu AI's (z.ai) latest frontier language model, scoring 60 on Artificial Analysis Intelligence Index—seven points above GLM-5.2 and tied with Kimi K3 as the strongest open-weight model available. Sharp gains on agentic coding and cyber benchmarks including Terminal-Bench 3.0. Released as API-only (weights promised but not yet released). Pricing: $1.40/M input tokens, $4.40/M output tokens, with cached input at $0.26 and cache storage free for limited time.

QUICK FACTS

Pricing Freemium
Platforms api
API Yes
Open Source No
Modalities LLMs
Best For Best for Cost Efficiency
Date Added 2026-09-04

WHY WE PICKED IT

Demonstrates competitive strength of Chinese AI research. Positioned between open-source and proprietary models. Aggressively priced competitive with open-source APIs. Weights promised suggest eventual open-source release.

STRENGTHS

GETTING STARTED

Access via z.ai API. Pricing model: $1.40/M input, $4.40/M output, $0.26 cached input. Sign up at z.ai dashboard.

BENCHMARKS

Artificial Analysis Intelligence Index · llm
60points

OFFICIAL LINKS

z.ai API↗ Model documentation↗

SIMILAR TOOLS

Claude Fable 5 GPT-6 Astra NotebookLM Claude Opus 5 GPT-5.6 Sol

USE CASE EXAMPLES

Cost-Optimized Agentic Coding

Use GLM-5.3 for cost-effective autonomous code generation and analysis.

STEPS:
  1. Define coding task
  2. Call GLM-5.3 API with agent instructions
  3. Model generates and refines code
  4. Validate output quality

Benchmark Comparison Testing

Evaluate model on Terminal-Bench and coding benchmarks.

STEPS:
  1. Set up benchmark suite
  2. Run GLM-5.3 against benchmarks
  3. Compare results to competitors
  4. Analyze cost/performance tradeoff

PRICING

Freemium Free tier available

Free tier includes limited features. Paid plans unlock full access, higher usage limits, and commercial usage rights.

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FEATURED IN GUIDES

Open Models: What They Cannot Do

The benchmark gap has largely closed: open models now score within a point of the closed frontier on...

Hardware For Local AI Models: What The Memory Shortage Changed

Capacity decides whether a model runs. Bandwidth decides how fast it talks, and it is the number mos...

How To Run AI Models Locally: Hardware, Quantisation And Engines

Running a frontier open model locally is a memory problem before it is a speed problem, and a bandwi...

Uncensored AI Models: What Abliteration Actually Does To Them

Abliteration removes a model's ability to refuse by deleting one direction from its activations. It ...

Which LLMs Actually Deliver in 2026?

Comprehensive comparison of the best large language models in 2026 including ChatGPT, Claude, Gemini...

EXPLORE ALTERNATIVES

View GLM-5.3 Alternatives (2026) →

Compare GLM-5.3 with 5+ similar llms AI tools.

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FREQUENTLY ASKED QUESTIONS

Q

Is GLM-5.3 free?

A

GLM-5.3 offers a free tier with optional paid upgrades.

Q

Does GLM-5.3 have an API?

A

Yes, GLM-5.3 offers an API for programmatic integration.

Q

What is GLM-5.3 best for?

A

GLM-5.3 is best for Cost Efficiency. GLM-5. Demonstrates competitive strength of Chinese AI research. Positioned between open-source and proprietary models. Aggressively priced competitive with open-source APIs. Weights promised suggest eventual open-source release.

Q

What platforms does GLM-5.3 support?

A

GLM-5.3 supports api.

Q

Is GLM-5.3 open source?

A

No, GLM-5.3 is not open source.

Q

How do I get started with GLM-5.3?

A

Access via z.ai API. Pricing model: $1.40/M input, $4.40/M output, $0.26 cached input. Sign up at z.ai dashboard.

Q

How do I use GLM-5.3?

A

GLM-5.3 is a large language model for text generation, analysis, and conversation. Use the API for programmatic access. Enter prompts or questions to get responses. It excels at score 60 on artificial analysis index (competitive).

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FEATURED ON CURATEDAI

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Featured on CuratedAI