GLM-5.1 pricing and specs

Strong GLM coding model for agentic engineering, terminals, and repository generation

118 ₽input / 1M$1.4
372 ₽output / 1M$4.4
200Kcontexttokens
131Kmax outputtokens

GLM-5.1 price per 1M tokens

Type₽ / 1M$ / 1M
Input tokens118 ₽$1.4
Output tokens372 ₽$4.4
Cache read21,97 ₽$0.26
Cache write0 ₽$0

Prices in rubles as of 18.09.2026 at the CBR rate: 1 $ = 84.51 ₽.

GLM-5.1 specs and limits

Context window
200K
Max output
131K
Input
text
Output
text
Family
glm
Released
2026-03-27
Updated
2026-03-27

What GLM-5.1 can do

  • Reasoning
  • Tool calling
  • Structured output
  • Attachments / files
  • Vision (images)
  • Temperature control
  • Open weights

GLM-5.1 benchmarks

BenchmarkScoreMetric
Artificial Analysis Coding Agent Index52.7average pass@1
SWE-Atlas Codebase QnA73.2pass@1
SWE-Bench Pro19.8pass@1
Terminal-Bench65.1pass@1

Model weights

Frequently asked questions

How much does the GLM-5.1 API cost?

Input costs $1.4 per 1M tokens (118 ₽) and output costs $4.4 per 1M (372 ₽). Zhipu AI bills the prompt and the completion separately, so the price of a call depends on how long both are. Ruble figures use the Bank of Russia rate of 84.51 ₽ per dollar for September 2026.

How much do 1,000 GLM-5.1 tokens cost?

List prices are quoted per 1M tokens, so 1,000 tokens cost a thousandth of that: divide $1.4 for input and $4.4 for output by 1,000. The same rates in rubles are 118 ₽ and 372 ₽ per 1M tokens. Both prompt tokens and completion tokens are billed.

How many tokens does GLM-5.1 hold?

The GLM-5.1 context window is 200K tokens (200,000). Everything shares that budget: the system prompt, the dialogue history, attached files and the answer the model writes. The figure comes from the Zhipu AI model card as of September 2026.

What are the GLM-5.1 limits?

The context window is 200K tokens (200,000) and a single response is capped at 131K tokens, so longer output has to be generated in parts. Rate limits are set by Zhipu AI per account and depend on your plan rather than on the model, so they are not listed here.

How is the GLM-5.1 price in rubles calculated?

Providers quote their tariffs in US dollars, so the ruble amounts here are a conversion at the official Bank of Russia rate of 84.51 ₽ per dollar. For GLM-5.1 that gives 118 ₽ per 1M input tokens and 372 ₽ per 1M output tokens. When the rate moves, the ruble price moves with it.

How is GLM-5.1 different from other GLM models?

GLM-5.1 belongs to the GLM family at Zhipu AI. Models in the GLM line differ in context size, price per 1M tokens and supported capabilities, so compare them by the numbers on their cards rather than by the name. Every GLM model is listed on the provider page.

Can GLM-5.1 reason?

Yes, GLM-5.1 declares a reasoning mode: it works through intermediate steps before it answers. Those steps add output tokens, so a call with a long reasoning chain costs more and takes longer than a plain completion. Capabilities declared for the model: reasoning, tool calling, structured output.

What capabilities does GLM-5.1 support?

The declared capabilities of GLM-5.1 are: reasoning, tool calling, structured output. It accepts text as input, and every attachment consumes tokens from the shared context window of 200K tokens. The list comes from the Zhipu AI model card and is refreshed with the catalog as of September 2026.

Other Zhipu AI models