Glm 5.1 costs $1.40/1M input tokens and $4.40/1M output tokens as of 2026-06-27. Openrouter publishes this model with a 203K tokens context window. o10 lists Glm 5.1 on Z.ai at routing band C4.

Last updated: 2026-06-27. Full catalog

Glm 5.1 pricing — input/output per 1M tokens

AnswersSelf-contained

How much does Glm 5.1 cost per million tokens?

Glm 5.1 costs $1.40/1M input tokens and $4.40/1M output tokens in the gateway catalog snapshot (2026-06-27). Endpoint pricing may differ by fulfillment host.

Sourced from gateway catalog snapshot.

Where can you run Glm 5.1?

Glm 5.1 is configured on Z.ai. Each host maps to an upstream model ID listed in the fulfillment routes table. This model is routable through o10 eval-gated routing.

What is Glm 5.1's context window?

Glm 5.1 supports a 203K tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.

01Deep dive

Token pricing

Gateway snapshot pricing for Glm 5.1.

Glm 5.1 token pricing
UnitPrice
Input$1.4/1M tokens
Output$4.4/1M tokens
02Deep dive

Fulfillment hosts

Upstream venues configured for Glm 5.1.

Glm 5.1 fulfillment routes
HostUpstream model ID
zaizai/glm-5.1
03Deep dive

Routing with o10

Eval-gated model selection for this slug.

o10 slug: glm-5.1. Band: C4. Routable: yes.

See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.

SourceMethodology

Gateway catalog snapshot 2026-06-27. Fulfillment catalog synced from o10 control plane. Verify list prices against openrouter and host providers.

FAQFrequently asked questions

Common questions

How much does Glm 5.1 cost?

Glm 5.1 costs $1.40/1M input tokens and $4.40/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.

What is Glm 5.1's context window?

Glm 5.1 supports 203K tokens in the gateway catalog snapshot. Host-specific endpoints may differ.

Which hosts serve Glm 5.1?

Glm 5.1 (glm-5.1) is configured on: Z.ai. Upstream model IDs are listed in the fulfillment routes section.

Is Glm 5.1 routable through o10?

Yes. Glm 5.1 is routable at band C4. Send model: "glm-5.1" or use an o10 smart routing alias.

How do I call Glm 5.1 via o10?

Use o10 slug "glm-5.1" or gateway ID "zai/glm-5.1" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.

How does o10 route this model?

o10 routes Glm 5.1 only when per-use-case evals clear at your quality floor. Band C4 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.