GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...
z-ai/glm-5.1GLM 5.1 is an API model from Z.ai, released on Apr 7, 2026, with a context window of 204,800 tokens, pricing of $1.4 per million input tokens and $4.4 per million output tokens. It accepts text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.018.
Specs are sourced from OpenRouter and were last checked on Nov 3, 2026. Always confirm current pricing and limits with the provider before production use.
GLM 5.1 supports a context window of 204,800 tokens.
GLM 5.1 is listed at $1.4 per million input tokens and $4.4 per million output tokens on OpenRouter.
GLM 5.1 was published on Apr 7, 2026.
GLM 5.1 accepts text input and produces text output.