
GLM is Z.ai's flagship LLM series from Zhipu AI, and the GLM API spans everything from the agentic GLM-5 to the efficient 357B MoE GLM-4.6. These models specialize in autonomous task execution, complex agent orchestration, and production-grade programming. On Atlas Cloud, a single unified endpoint gives you Day-0 access to the entire GLM family with usage-based pricing and dependable production uptime. Start building today.
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| Modality | Description |
|---|---|
| GLM-5.2 | Purpose-built as an agent-oriented model, GLM-5.2 turns natural language prompts and tool-call context into structured reasoning, function calls, and autonomous task execution. It is tuned for complex problems where the model must plan, act, and iterate on its own. Reach for it when building autonomous agents and long-horizon tool-using workflows, priced at $1.4 per million input tokens and $4.4 per million output tokens. |
| GLM-5.1 | Feed GLM-5.1 a coding task or a multi-step problem and it returns strong programming output alongside stable step-by-step execution. As Z.AI's latest flagship, it also delivers more natural conversation and refined front-end aesthetics. It suits teams building complex web apps and agent pipelines, with input at $1.4 and output at $4.4 per million tokens. |
| GLM-5v Turbo | GLM-5v Turbo converts text prompts into fast completions while retaining the flagship's enhanced programming and stable multi-step execution. This turbo variant prioritizes lower latency for interactive, high-throughput products without sacrificing conversational polish. Pick it when responsiveness matters most, at $1.2 per million input tokens and $4 per million output tokens. |
| GLM-5 Turbo | Text goes in and completions come out at speed with GLM-5 Turbo, a latency-optimized flagship built for enhanced programming and reliable multi-step reasoning. It keeps responses natural and front-end generation clean while accelerating throughput for real-time use. Well matched to chat interfaces and rapid agent loops, billed at $1.2 per million input tokens and $4 per million output tokens. |
| GLM-5 | GLM-5 takes text instructions and generates code, reasoning chains, and conversational replies as Z.AI's core flagship release. Its headline upgrades center on stronger programming and steadier multi-step execution across complex agent tasks. A balanced choice for full-stack development and everyday reasoning, offered at $1 input and $3.2 output per million tokens. |
| GLM-4.7 | Prompt GLM-4.7 for coding or agent orchestration and it responds with dependable multi-step execution and natural dialogue. This flagship-tier model pairs enhanced programming with polished front-end output at a more accessible price. It fits cost-sensitive production workloads, billed at $0.6 per million input tokens and $2.2 per million output tokens. |
| GLM-4.6 | A 357B-parameter efficient Mixture-of-Experts model from Zhipu AI, GLM-4.6 maps text prompts to high-quality completions with strong throughput. Its MoE design activates only the experts each request needs, keeping inference efficient across analysis and content tasks. Deploy it for data analysis, slide drafting, and web content at $0.6 input and $2.2 output per million tokens. |
From a sparse Mixture-of-Experts core and 200K-token context to native tool calling and switchable thinking modes, the GLM API brings Z.ai's flagship reasoning and coding stack behind a single OpenAI-compatible endpoint.

A sparse Mixture-of-Experts core activates only about 40 billion parameters per query, drawing on a far larger pool of experts. The result is deep knowledge and precise recall without dense-model cost on every call.

Planning logic is built into the GLM API so agents execute long-horizon, multi-step tasks without drifting off course. This stability suits automated software development, research pipelines, and workflows that stay coherent over many steps.

Reinforcement-learning post-training sharpens the model's code generation and algorithmic reasoning well beyond earlier GLM releases. Developers get more reliable full-stack output and stronger structural problem-solving where small logic errors tend to compound.

Each model handles 200K tokens of context or more, with up to 128K output tokens, and sparse attention keeps that scale affordable. Whole repositories, long contracts, and research briefs stay in view at once.

Wire external tools and services into the GLM API through native function calling and structured JSON output. The model decides when to invoke a tool, formats arguments to your schema, and returns machine-readable results.

One OpenAI-compatible key reaches the entire GLM API lineup, from flagship GLM-5.2 to the Turbo tiers and cost-efficient GLM-4.6. Prototype on a lighter tier, then promote to production with one line and pay-as-you-go pricing.
Send a single build request through the GLM API and watch GLM 5.2, DeepSeek V4 Pro, and GLM 5 turn the same instruction into a working interactive page, so you can weigh front-end quality, layout logic, and interaction polish at a glance.
Generate a complete, single-file, self-contained HTML document (all CSS and JavaScript inlined, absolutely no external dependencies, no CDNs, no image URLs, no external fonts) that renders an interactive "Aurora Tuning Console" — a full-viewport WebGL experience of a midnight polar sky where the aurora is computed in real time inside a GLSL fragment shader, never faked with sprites, textures, or particle stacks. Core rendering requirement: render a single full-screen quad and do all the visual work in a fragment shader. The aurora borealis must be generated procedurally from layered fractal value/simplex noise (fbm, 4–6 octaves) that flows and warps over time via a uniform clock, producing tall vertical light curtains that breathe, ripple, knot, and dissipate. Model the aurora as self-emissive volumetric glow: accumulate brightness along a vertical falloff, add soft bloom at the base of each curtain, and scatter faint drifting star-dust noise through the dark upper sky. Compose the frame as a minimalist low-horizon upward gaze — roughly 80% sky, with a dark silhouetted mountain ridge and a mirror-still lake across the bottom that reflects the aurora and stars in a softly rippling, vertically-mirrored copy. Base palette is near-black indigo (deep blue-violet night); the aurora is the only high-saturation element — restrained, luminous, translucent, never garish. Interactions (all real-time, smooth, and clearly responsive): - Mouse drag across the sky "pulls" the light curtains like fabric — feed the pointer position/velocity into shader uniforms so the aurora bends, stretches, and streams toward the cursor, then eases back with gentle inertia when released. - Mouse-wheel scroll cycles the "season," continuously interpolating the aurora's color band through emerald green → magenta → indigo (and back), shown as a smooth gradient shift, not discrete jumps. - Double-click ignites a new star at that point in the sky: it pulses (sinusoidal brightness) and casts a matching reflection on the lake. Support many simultaneous stars. - Keep a subtle idle animation so the first light curtain appears to slowly awaken and unfurl on load — a quiet, sacred, cold-and-still mood. UI & polish: a small, elegant, semi-transparent control overlay in a corner showing the current season/color and a faint one-line hint of the controls (drag / scroll / double-click), styled in a clean modern cold-toned aesthetic with soft fade transitions. Make it fully responsive: resize the WebGL canvas and update resolution uniforms on window resize so it fills any viewport and stays crisp on high-DPI screens. Target a steady 60fps using requestAnimationFrame. Include a graceful fallback message if WebGL is unavailable. Prioritize the mathematical quality of the noise flow, the volumetric glow, and the fluidity of the interactions — this is where a capable model should visibly outshine a weaker one.
Generated with GLM 5.2 on Atlas Cloud
Generated with Grok 4.5 on Atlas Cloud
Generated with GLM 5 on Atlas Cloud
Build a complete, single-file, self-contained HTML document (all CSS and JavaScript inlined in one file, absolutely zero external dependencies — no CDNs, no external scripts, no web fonts, no image URLs, no SVG assets fetched over the network; generate every sound with the native Web Audio API and draw every visual with CSS and Canvas/DOM) that opens directly in any modern browser and runs a playable cyberpunk step-sequencer drum machine in the visual language of 1980s synthwave neon. Core instrument: render a glowing step matrix of 16 columns × 6 tracks laid out horizontally across the screen, one row per voice — Kick, Snare, Closed Hi-Hat, Open Hi-Hat, Clap, and Synth Bass. Each of the 96 cells is a clickable pad; clicking toggles it on/off, an active cell lights up with a saturated magenta-to-cyan glow, an inactive cell sits as a dim recessed rectangle on the near-black indigo background. The user programs a beat by lighting cells column by column. Support click-and-drag painting across cells to toggle many at once. Audio: synthesize all drum voices live with the Web Audio API — kick as a pitch-swept sine with fast amplitude decay, snare and clap as filtered white-noise bursts with envelope, closed and open hi-hats as high-passed noise with short vs. long decay, and synth bass as a detuned saw/square through a resonant low-pass filter playing a selectable root note. Schedule steps with an accurate look-ahead clock (not naive setInterval timing) so the loop stays rock-solid at high tempo. Loop the 16-step pattern continuously when playing. Transport and controls, docked in a symmetric control bar pinned across the bottom: a large Play/Stop button, a BPM dial or rotary knob (draggable, range ~60–200 BPM, default 120) with a live numeric readout, a master volume fader, per-track mute buttons, a Clear button, and a Randomize button that generates a plausible beat. A moving playhead — a vertical light-blade — sweeps across the grid in perfect sync with the audio, and every cell it hits that is active blooms with a radial ripple pulse that fades. Include a live oscilloscope/waveform display that visualizes the master output amplitude in real time, reacting to the sound. Visual style: deep indigo-to-violet gradient background so dark it reads near-black, grid lines and UI accents in electric magenta and cyan, all luminosity coming from element self-glow and hit-flash bloom (box-shadow glow, additive-feeling highlights) to evoke a late-night underground club pulsing to the loop. Center the full grid on screen, keep the layout symmetric with the control bar compressing the base, and make it responsive so the grid scales gracefully down to smaller viewports. Add subtle animated scanline or chromatic shimmer for atmosphere without hurting readability. Interaction requirements: everything responds instantly — clicking pads, dragging the BPM knob and volume fader, toggling mutes, pressing spacebar to Play/Stop, and pressing the number keys to jump the bass root note. State (which cells are active, BPM, volume, mutes, playing status) must be managed cleanly so the UI and audio never drift out of sync. First interaction with the page should also unlock/resume the AudioContext. Prioritize tight audio-visual synchronization, smooth 60fps animation of the playhead and ripples, and a genuinely satisfying, musical result out of the box.
Generated with GLM 5.2 on Atlas Cloud
Generated with Grok 4.5 on Atlas Cloud
Generated with GLM 5 on Atlas Cloud
From autonomous coding agents and long-horizon research to conversational products and high-volume data analysis, the GLM API gives developers one OpenAI-compatible endpoint for building reliable, agent-driven software.
Built for autonomous task execution, GLM models plan, write, and refine code across multi-step workflows without losing project context. Development teams rely on this to power PR review bots, refactoring assistants, and build pipelines.
Stable multi-step reasoning lets these models decompose sprawling research questions, call external tools, and hold context across long chains of dependent actions. This suits analysts and product teams automating multi-source synthesis and cross-platform operations.
GLM models turn rough mockups and plain descriptions into clean, responsive interface code with a strong sense of visual polish. Solo founders and design-minded developers ship functional prototypes and production UIs far faster.
Want assistants that feel human? The GLM API delivers natural conversational experiences backed by stable reasoning, powering chatbots, support copilots, and in-app assistants that stay coherent across long, branching dialogues.
Because these models are built for tool use, they select functions, format arguments, and chain API calls inside agentic systems. Engineers use this to wire GLM into orchestration layers, RAG pipelines, and multi-agent stacks.
Tap the GLM API to reason over large documents, spreadsheets, and reports, extracting structured insights through an efficient Mixture-of-Experts design. Ideal for finance, legal, and operations teams that need dependable, high-volume analysis.
Compare every GLM API model against leading text LLMs on Atlas Cloud across context length, output ceilings, and transparent pay-as-you-go pricing.
| Model | Context Window | Max Output | Input ($/1M tokens) | Output ($/1M tokens) |
|---|---|---|---|---|
| GLM 5.2 | 1M | 128K | $1.40 | $4.40 |
| GLM 5.1 | 203K | 203K | $1.40 | $4.40 |
| GLM 5 | 203K | 203K | $1.00 | $3.20 |
| GLM 4.7 | 203K | 203K | $0.60 | $2.20 |
| DeepSeek V4 Pro | 1M | 384K | $1.74 | $3.45 |
| Kimi K2.7 Code | 256K | 256K | $0.95 | $4.00 |
| MiniMax M3 | 512K | 512K | $0.60 / $1.20 >512K | $2.40 / $4.80 >512K |
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Combining the advanced GLM models with Atlas Cloud's GPU-accelerated platform provides unmatched performance, scalability, and developer experience.
Low Latency:
GPU-optimized inference for real-time reasoning.
Unified API:
Run GLM, GPT, Gemini, and DeepSeek with one integration.
Transparent Pricing:
Predictable per-token billing with serverless options.
Developer Experience:
SDKs, analytics, fine-tuning tools, and templates.
Reliability:
99.99% uptime, RBAC, and compliance-ready logging.
Security & Compliance:
SOC 2 Type II, HIPAA alignment, data sovereignty in US.
The GLM API gives developers access to Z.ai's (Zhipu AI) GLM series of open-weight large language models, including GLM-5.2, GLM-5, GLM-4.7, and GLM-4.6. These models are engineered for coding, multi-step reasoning, and autonomous agent tasks. On Atlas Cloud you reach the entire family through one OpenAI-compatible endpoint with pay-as-you-go pricing.
Atlas Cloud hosts the current GLM lineup, including GLM-5.2, GLM-5.1, GLM-5, GLM-5 Turbo, GLM-5v Turbo, GLM-4.7, and GLM-4.6. Flagship versions target complex agentic and coding work, while the Turbo variants prioritize faster, lower-latency responses. Switching between them takes only a change to the model identifier in your request.
Sign up for Atlas Cloud, generate one API key, and point your existing OpenAI-compatible client at our endpoint. Because the GLM API follows the OpenAI request format, most integrations need only a base URL and model name change to begin sending requests. Access is pay-as-you-go with transparent per-call pricing and no subscription.
Pricing is pay-as-you-go and billed per token, with no subscription required. GLM-4.7 and GLM-4.6 start at $0.60 per million input tokens and $2.20 per million output tokens, GLM-5 is $1.00 input and $3.20 output, and GLM-5.2 is $1.40 input and $4.40 output. Cached input is billed at a lower rate, which reduces cost on repeated context.
GLM models on Atlas Cloud offer a large context window of roughly 200K tokens, with maximum output reaching about 131K tokens on flagship versions. That capacity is enough to load entire repositories, long documents, or extended agent histories in a single request. Longer-context variants exist within the GLM family, so check each model page for its exact limit.
Yes. GLM models support tool and function calling along with structured JSON output, which lets them slot directly into agentic pipelines and production systems that expect machine-readable responses. Paired with the OpenAI-compatible format, the GLM API is straightforward to wire into existing tool-use workflows.
These models are built for programming, long-horizon reasoning, and autonomous agent execution. Common uses include whole-repository code analysis, full-stack prototyping, and multi-step research or workflow automation. The flagship GLM-5 series handles the most demanding agentic work, while GLM-4.6 offers a strong balance of speed and capability for everyday tasks.
GLM's flagship models are positioned as competitive open-weight alternatives to leading closed-source models on coding and agentic benchmarks. The main practical draw is cost, since per-token pricing runs a fraction of comparable proprietary models while programming performance stays strong. For teams weighing budget against quality, GLM offers frontier-level capability at a lower rate.
Yes. Atlas Cloud serves GLM models through an OpenAI-compatible endpoint, so any framework or SDK that accepts a custom base URL and model name can call them with minimal changes. This lets you drop GLM into tool-calling agents, coding assistants, and multi-step orchestration pipelines you already run. Start building today.
Yes. The GLM series is released by Z.ai (Zhipu AI) as open-weight models under a permissive license, which is why they are widely regarded as a leading open-source option. On Atlas Cloud you get managed, production-ready access to these models without hosting or maintaining the infrastructure yourself.
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