About

GLM 5.2 is an advanced AI model built for coding, software engineering, and long-context reasoning. With a 1M-token context window, strong benchmark performance, and browser-based playground access, it helps developers build, debug, and ship software more efficiently. Rather than forcing you to chop projects into small fragments, GLM 5.2 is designed to keep large volumes of code, documentation, and task context in view at once, making it easier to reason about how individual changes fit into the larger structure of a codebase.

Key Features

**1M-token context window** — Fit large codebases, lengthy documentation, and extended conversation histories into a single session, so the model can reason across many files and prior steps without losing the thread.

**Strong coding and software engineering capabilities** — Benchmark-backed performance on real programming work, from writing new code to explaining, testing, and fixing existing code.

**Long-horizon task execution** — Sustain multi-step tasks that require planning, tracking state across steps, and carrying earlier decisions forward through an extended working session.

**Front-end development assistance** — Build and iterate on user-facing code while keeping layout, interaction, and implementation details consistent as interfaces grow in complexity.

**OpenAI-compatible API** — Connect through an interface that follows the OpenAI API format, so existing tooling and integration patterns can be pointed at GLM 5.2 without rearchitecting your stack.

**Live online playground** — Test prompts and evaluate model behavior directly in the browser, with no local setup required, before committing anything to API-based workflows.

**Flexible subscription and credit plans** — Choose between subscription access and credit-based usage, scaling your spending to match how intensively you use the model.

Pricing & Fees

Pricing: Monthly plans are Starter at $9.9 (9,900 credits), Pro at $29 (30,000 credits), Business at $79 (85,000 credits), and Team at $149 (160,000 credits); prepaid top-ups from $5 for 5,000 credits up to $100 for 108,000 credits.
Free credits: New registrations get a 200-credit bonus (valid 30 days), and daily logins add 20 credits (valid 7 days, stacked up to 7 days); playground runs cost a minimum of 10 credits plus per-token billing.
Credit rules: Monthly subscription credits roll over for up to 60 days, and prepaid top-ups can be added at any time for extra capacity.
API access: The site is a third-party hub; API key access is prepared for paid plans but only activates after the official API launch, with rate limits applying afterward.
Playground: The online playground requires login, streams output server-side, and supports the model's 1M-token context for coding and long-context evaluation.

Who It's For

GLM 5.2 combines long-context understanding, real-world coding performance, and developer-focused workflows in a single platform. Whether you're evaluating AI models — comparing benchmark results and testing behavior hands-on in the live playground — or integrating AI into production systems through the OpenAI-compatible API, GLM 5.2 provides a practical environment for serious engineering work. It suits developers who need to move fluidly between quick experiments and sustained, multi-step tasks, and who want a single model that handles both deep codebase reasoning and the day-to-day work of building, debugging, and shipping software.

About

Key Features

Pricing & Fees

Who It's For

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