{"name":"GLM API","tagline":"Zhipu AI's OpenAI-compatible API for GLM text, vision, image and video models, plus flat-rate coding plans.","url":"https://open.bigmodel.cn/pricing","category":"models-api","pricing":"paid","price_note":"GLM-5.3 (1M context) approx ¥8/¥28 per 1M and temporarily free as of scan; GLM-5.2 same; GLM-5.1 ¥6–8/¥24–28, GLM-5-Turbo ¥5–7/¥22–26, GLM-4.7-Flash free","free_tier":true,"open_source":false,"api":true,"self_host":false,"models_used":["glm-5-3","glm-5-2"],"model_routing":"locked","verdict":"situational","verdict_text":"GLM-5.2 is a serious open-weights flagship with a huge context window, and the flat-rate Coding Plan is genuinely different. The catch is Zhipu's international surface is thinner than Qwen's, with CNY pricing, lower brand recognition and a promo price that may not last.","limitations":["The hosted API is proprietary; some GLM model weights are available separately for self-hosting.","Pricing page is CNY-only and tiered by input/output length.","GLM-5.3 and GLM-5.2 were temporarily free at scan time — promo pricing may end without notice.","Western brand recognition and documentation are lower than Qwen/DeepSeek/Kimi.","International sign-up and billing can be less straightforward."],"strengths":["GLM-5.2 is a serious open-weights flagship with a huge context window.","Flat-rate Coding Plan is a genuinely different pricing option.","OpenAI-compatible API covers text, vision, image and video models."],"use_for":["Chinese-lab pricing with a flat-rate coding subscription.","GLM-family multimodal calls through an OpenAI-compatible endpoint."],"skip_when":["You need English-first docs and support comparable to Qwen.","CNY-only pricing and tiered rate cards are a compliance headache.","The temporary free promo ending would break your cost model."],"receipts":["https://open.bigmodel.cn/pricing","https://www.aipricing.guru/z-ai-subscription-pricing/","https://therouter.ai/blog/zhipu-glm-api-complete-guide"],"affiliate":"none","evidence_tier":"source-verified","momentum":"blueshift","featured":false,"last_verified":"2026-08-19","observed_by":"whysanesanders","slug":"glm-api","canonical_url":"https://noemium.com/tools/glm-api/","attribution":"Noemium catalog data is licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). See https://noemium.com/method/ for how entries are verified."}