BiWu.Ai
GLMglm-5.1

GLM-5.1 API Pricing

GLM-5.1 is a GLM model. On the official Zhipu BigModel API, it costs CN¥6 per 1M input tokens and CN¥24 per 1M output tokens, with cached input at CN¥1.30. BiWu.Ai lists 3 price options for this model below.

Prices checked Oct 10, 2026 · Exchange rates Oct 10, 2026

Input / 1M tokens

CN¥6

≈ $0.89

Output / 1M tokens

CN¥24

≈ $3.58

Cached input / 1M

CN¥1.30

≈ $0.19

Providers and plans

3

The official price is published in Chinese yuan (CNY, shown as CN¥). USD values are approximate, converted at 6.7065 CNY per USD (Oct 10, 2026).

Official GLM-5.1 API price

Source: Zhipu BigModel API. Prices per 1 million tokens.

Official GLM-5.1 API price per 1M tokens
Token typePrice per 1M tokens
InputCN¥6 (≈ $0.89)
OutputCN¥24 (≈ $3.58)
Cached input (cache read)CN¥1.30 (≈ $0.19)

GLM-5.1 prices by provider

Per-token prices listed for this model by the official API and other providers, per 1M tokens.

GLM-5.1 API prices by provider
ProviderTypeInputOutputCached input
Zhipu BigModel APIOfficial APICN¥6 (≈ $0.89)CN¥24 (≈ $3.58)CN¥1.30 (≈ $0.19)
OpenCode GoSubscription plan$1.40$4.40$0.26

Subscription and coding plans that include GLM-5.1

Monthly plans with a usage allowance instead of per-token billing. Quotas and limits differ, so check each plan's official page.

Plans that include GLM-5.1
ProviderPlanTypeMonthly pricePrices by country
OpenCode GoOpenCode GoSubscription plan$10/month—

GLM-5.1 API pricing FAQ

How much does GLM-5.1 cost per 1M tokens?

On the official Zhipu BigModel API, GLM-5.1 costs CN¥6 (about $0.89) per 1M input tokens and CN¥24 (about $3.58) per 1M output tokens. Cached input costs CN¥1.30 per 1M tokens. Prices checked Oct 10, 2026.

How much does prompt caching save on GLM-5.1?

Cached input is billed at CN¥1.30 per 1M tokens, 78% less than the standard input price of CN¥6.

What does a typical GLM-5.1 API request cost?

A request with 10,000 input tokens and 1,000 output tokens costs about CN¥0.084 at the official rates (CN¥6 × 0.01 + CN¥24 × 0.001).

Where else can I use GLM-5.1?

Besides the official API, BiWu.Ai lists 1 other provider for GLM-5.1: OpenCode Go. Prices, quotas and terms differ by provider, so check each provider's page before you pay.

Other GLM models

BiWu.Ai lists public API prices for reference and does not sell API access. Free and low-cost providers may have rate limits, queues, regional restrictions or changing terms. Check the provider's pricing page before you build on it.