Zhipu AI
Z.ai's developer platform for GLM-5.3, open multimodal GLM-5.3-Flash, GLM-5.2 and its text, vision, image, video, audio, embedding, agent and tool services.
Quick answer
Z.ai now has an English product surface, while BigModel remains the API evidence base for the full GLM product line.
Z.ai and BigModel are the international and developer routes for Z.ai/智谱. The original GLM-5.3 flagship targets complex software engineering, long-horizon agents and cybersecurity analysis through Coding Plan, with 1M context, 128K maximum output and low, high or max reasoning effort. GLM-5.3-Flash is a separate, newly trained 320B/18B-active variant with native multimodality, MIT weights, a first-party API, 1M context configuration and hybrid sparse-linear attention. GLM-5.2 remains an established priced API and open-weight route. The wider platform also covers vision, image, video, audio, embedding, agent and tool services, plus HTTP, Python, Java, OpenAI SDK compatibility and LangChain integration paths.
Topic guideA source-backed map of the original GLM-5.3, open multimodal GLM-5.3-Flash, GLM-5.2, BigModel APIs, Coding Plan, ZCode, consumer agents and media products.
Editorial verdict
Developers comparing Chinese multimodal model APIs, agent services and OpenAI-compatible migration paths.
Avoid treating it as fully internationalized until account signup, billing and support are tested from your target region.
Z.ai now has an English product surface, while BigModel remains the API evidence base for the full GLM product line.
20 million free tokens are promoted; VentureBeat reports GLM-5.2 API pricing at $1.40/M input tokens and $4.40/M output tokens
Free trial tokens, Platform billing, Enterprise sales
Commercial use should follow the current product, API, model license and billing terms.
Review prompt, file, media upload, retention and training-use terms before sensitive workloads.
Use it to compare GLM text, vision, image, video, audio, embedding and rerank APIs.
Official docs include tool calling, web search, OCR, file parsing, batch, fine-tuning and agent APIs.
Docs mention OpenAI SDK compatibility, but production migration still needs endpoint, billing and model-behavior tests.
Use the original GLM-5.3 through Coding Plan for its published coding profile, GLM-5.3-Flash when API, native multimodality or MIT weights matter, and GLM-5.2 for an established alternative route.
Model names, quotas, release status, regional access and commercial terms can change quickly; recheck official sources before procurement or production use.
qwen
deepseek
minimax-api
Official · EN · verified 2026-08-28
Confirms MIT weights, first-party API access, native multimodality, 320B/18B active architecture, 1M context configuration and hybrid attention.
Official · EN · verified 2026-08-14
Confirms the release, post-training scaling, coding and cybersecurity gains, required thinking mode, Coding Plan rollout and planned weight release after safety hardening.
Documentation · EN · verified 2026-08-14
Confirms the original model's 1M context, 128K output, text modalities and Coding Plan availability at launch; GLM-5.3-Flash is tracked separately.
Official · EN · verified 2026-08-04
Confirms the stable 1M-token context, High and Max effort controls, MIT license, open weights, local inference frameworks, Coding Plan rollout and official benchmark disclosures.
Other · EN · verified 2026-06-21
Reports a 753B-parameter model, $1.40/M input, $4.40/M output and $0.26/M cached-input API rates, and compares vendor-reported benchmarks and pricing with proprietary competitors.
Other · EN · verified 2026-06-21
Reports GLM-5.2 taking the top Design Arena position ahead of Claude Fable 5; VentureBeat separately reports a 1360 ELO result. Treat this as media-reported arena performance rather than an independently reproduced benchmark.
Official · EN · verified 2026-05-17
Confirms Z.ai branding, GLM, MaaS, product lineup and free-trial positioning.
Documentation · ZH · verified 2026-05-17
Confirms one-stop MaaS positioning, SDKs, OpenAI SDK compatibility and LangChain integration.
Documentation · ZH · verified 2026-05-17
Lists GLM text, vision, image, video, audio, embedding and other model families.
Last checked: 2026-08-28
No approved reviews yet.