Z.ai · Open-weight
GLM 5.3 Flash API Member pricing vs list price
zai/glm-5.3-flash
Open-weightGLM 5.3 Flash is an open-weight model from Z.ai with a 1M-token context window. It lists at $0.15 input and $0.50 output per 1M tokens, and Members pay $0.1275 and $0.425 with a Private key.
GLM 5.3 Flash prices per 1M tokens
Input / output, by membership tier and data policy. Every price is a percent of the provider's public list price.
| Tier | Private | Research ShareFinancial incentive notice |
|---|---|---|
| List price | $0.15 input, $0.5 output per 1M tokens | |
| Guest | Not on Guest (data sharing required) | $0.1425 input, $0.475 output per 1M tokens5% off list price |
| Member | $0.1275 input, $0.425 output per 1M tokens15% off list price | $0.12 input, $0.4 output per 1M tokens20% off list price |
| Executive | $0.1125 input, $0.375 output per 1M tokens25% off list price | $0.105 input, $0.35 output per 1M tokens30% off list price |
Does Member pay for itself on GLM 5.3 Flash?
- Member ($199 a year) pays for itself once your GLM 5.3 Flash spend at list price passes $111 a month with a Private key (about 465M tokens at a 3:1 input-to-output mix) or $82.92 a month with Research Share.
- Executive ($1,999 a year) costs less than Member above $1,500 a month (Private keys), about 6.3B tokens a month.
- Guests already pay 5% below list here with no fee; against that price, Member Research Share pays for itself above $111 a month.
At this volume Guest saves $1.19 a month against list price.
| Plan | Usage / mo | Fee / mo | Net vs list / mo | Pays off above |
|---|---|---|---|---|
| Guest | $22.56 | Free | $1.19 | No fee |
| Member · Private | $20.19 | $16.58 | −$13.02 | 465M tokens |
| Member · Research Share | $19.00 | $16.58 | −$11.83 | 349M tokens |
| Executive · Private | $17.81 | $167 | −$161 | 2.8B tokens |
| Executive · Research Share | $16.63 | $167 | −$159 | 2.3B tokens |
Usage at each plan's price per token. The fee is the annual membership fee divided by 12 and covers every model, so spend on other models counts toward it too.
Specs
| Provider | Z.ai |
|---|---|
| Model type | Open-weight |
| Context window | 1,048,576 tokens (1M) |
| Input and output | Text in, text out (chat completions) |
| Model ID | zai/glm-5.3-flash |
| Endpoint | POST https://api.bearer.club/v1/chat/completions |
| Plans | Guest (Research Share), Member, Executive |
| List price per 1M tokens | $0.15 input, $0.50 output |
List price rank: 16th lowest input price and 14th lowest output price of the 69 models. Its context window is larger than 45 of them.
Where GLM 5.3 Flash fits
The "Flash" in its name marks a lighter tier of Z.ai's lineup. Models like this are a common fit for high-volume work such as classification, extraction, tagging, routing and short replies, where cost per request matters most. By list price at a 3:1 input-to-output mix it is in the lowest-priced third of the 69 models on Bearer Club.
Its context window of 1,048,576 tokens can take very long inputs, such as long documents, large code files or long chat histories, in one request.
It is open-weight, so Guests can call it at 5% below list with Research Share and no membership fee (usage is paid from prepaid credit), and signed-in users can try it in the free Playground.
Bearer Club does not publish benchmark scores. Test GLM 5.3 Flash on your own prompts before you move traffic to it.
What 1,000 requests cost
Example request shapes, priced per 1,000 requests from the per-token prices above.
| Request (input / output tokens) | List price | Guest | Member Private | Executive Private |
|---|---|---|---|---|
| Short chat reply1,000 / 300 | $0.30 | $0.29 | $0.26 | $0.23 |
| Document summary20,000 / 1,000 | $3.50 | $3.32 | $2.98 | $2.63 |
| Long-context read200,000 / 2,000 | $31.00 | $29.45 | $26.35 | $23.25 |
Related models
- GLM 5.3 FlashX
$0.37 input / $1.25 output at list, 2.5× the price of GLM 5.3 Flash at a 3:1 mix; 1M-token context; closed, members only.
- GLM 5.3
$0.03 input / $4.80 output at list, 5.1× the price of GLM 5.3 Flash at a 3:1 mix; 1M-token context; open-weight, on the Guest plan.
- DeepSeek V4.1 Flash
$0.02376 input / $0.891 output at list, 1% more than GLM 5.3 Flash at a 3:1 mix; 1M-token context; open-weight, on the Guest plan.
- Hy3
$0.132 input / $0.528 output at list, 3% cheaper than GLM 5.3 Flash at a 3:1 mix; 262K-token context; open-weight, on the Guest plan.
Data policy for this model
Private: Your prompts and outputs are never used for training and never shared or licensed. For security, abuse prevention and debugging we store request and response content, encrypted, and delete it after 30 days; error details may be kept longer. We also keep usage details (model, tokens, cost, latency, status and time). The model provider may keep requests briefly for abuse monitoring under its own terms.
Research Share: available. Opt in per key and pay less. Data from that key will be used to accelerate AGI and supplied to top frontier labs for AGI purposes, and only for traffic after you opt in.
Regions
Each model is served only in the regions its provider supports. Per-model region details are not published yet.
Use GLM 5.3 Flash with the OpenAI SDK
Change two settings: point the SDK at https://api.bearer.club/v1 and use your Bearer Club key, then pass zai/glm-5.3-flash as the model.
curl https://api.bearer.club/v1/chat/completions \ -H "Authorization: Bearer $BEARER_CLUB_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "zai/glm-5.3-flash", "messages": [{"role": "user", "content": "Hello from the Club!"}] }'import osfrom openai import OpenAIclient = OpenAI( base_url="https://api.bearer.club/v1", api_key=os.environ["BEARER_CLUB_API_KEY"], # your membership card)resp = client.chat.completions.create( model="zai/glm-5.3-flash", messages=[{"role": "user", "content": "Hello from the Club!"}],)print(resp.choices[0].message.content)import OpenAI from "openai";const client = new OpenAI({ baseURL: "https://api.bearer.club/v1", apiKey: process.env.BEARER_CLUB_API_KEY, // your membership card});const resp = await client.chat.completions.create({ model: "zai/glm-5.3-flash", messages: [{ role: "user", content: "Hello from the Club!" }],});console.log(resp.choices[0].message.content);The official OpenAI SDKs and most OpenAI-compatible tools, such as Cursor, Cline, Continue, Open WebUI and LiteLLM, work the same way; the name of the base URL setting varies by tool.
GLM 5.3 Flash FAQ
How much does GLM 5.3 Flash cost on Bearer Club?
GLM 5.3 Flash lists at $0.15 input and $0.50 output per 1M tokens. Members pay $0.1275 / $0.425 with a Private key and $0.12 / $0.40 with Research Share; Executives pay $0.1125 / $0.375 and $0.105 / $0.35. Guests pay $0.1425 / $0.475 with Research Share.
Can Guests use GLM 5.3 Flash?
Yes. GLM 5.3 Flash is open-weight, so Guests can call it with Research Share at $0.1425 input and $0.475 output per 1M tokens (5% below list). There is no membership fee, but API calls are paid from a prepaid balance, so add credit first. Signed-in users can also try it free in the Playground.
When does Member pay for itself on GLM 5.3 Flash?
Member ($199 a year) pays for itself above about $111 a month of GLM 5.3 Flash spend at list price with a Private key, or $82.92 a month with Research Share. The fee is shared across every model you call, so spend on other models counts too.
What context window does GLM 5.3 Flash support?
1,048,576 tokens, roughly 790,000 English words. The prompt and the answer together have to fit in it.
What is the model id for GLM 5.3 Flash on Bearer Club?
Use zai/glm-5.3-flash as the model in requests to https://api.bearer.club/v1/chat/completions. The same id appears in the https://api.bearer.club/v1/models list.
Further reading
- Replicate alternatives for developers watching token costs
Replicate alternatives compared: Bearer Club gives you Claude, GPT, Llama and DeepSeek on one OpenAI-compatible key at member prices. Verified prices inside.
- OpenAI-compatible API explained: one key for 69 models
OpenAI-compatible API: change base_url and api_key to reach 69 models including GPT-6, Claude, DeepSeek, and Gemini through Bearer Club at member prices.
Discounts are measured against each provider's public list price and vary by model, membership tier and data policy. See Pricing.