Pricing · GLM
GLM 5.3 Flash pricing: API price, cost per message and plans
What GLM 5.3 Flash costs, three ways: Z.ai's API price per token, what GLM 5.3 Flash's replies actually cost in our test runs, and how many GLM 5.3 Flash messages each llmwise plan includes. Every limit on GLM 5.3 Flash is on its model page.
API prices checked against OpenRouter's GLM 5.3 Flash page. Updated .
Short answer
GLM 5.3 Flash's API price is $0.15 per million input tokens and $0.50 per million output tokens (Z.ai's list price, September 2026). In our 50 test runs a GLM 5.3 Flash reply cost $0.00019 on average (median $0.00015), from $0.000099 a reply on translation to $0.00038 on data analysis. In llmwise you pay per message instead: up to 60 GLM 5.3 Flash messages a day on Pro ($20), 120 on Max ($50), 200 on Ultra ($100) and 200 on Studio ($200).
GLM 5.3 Flash API pricing
GLM 5.3 Flash through its API is billed per token: $0.15 in, $0.50 out per million tokens, as of September 2026.
| Input tokens | $0.15 per million |
|---|---|
| Output tokens | $0.50 per million |
| A typical GLM 5.3 Flash message (4,000 in, 700 out) | $0.0010 |
| 1,000 typical GLM 5.3 Flash messages | $0.95 |
| Typical GLM 5.3 Flash messages for $1 | 1,052 |
| Whose price | Z.ai's list price |
What a GLM 5.3 Flash reply cost in our test runs
We sent the same 50 test prompts to every model in llmwise on September 27, 2026, through OpenRouter with llmwise's own prompt and settings. Here's what each GLM 5.3 Flash reply cost, job by job.
| Job | GLM 5.3 Flash, per reply | Per 1,000 replies | Tokens in / out | Passed |
|---|---|---|---|---|
| Coding | $0.00025 | $0.25 | 500 / 372 | 5 of 5 |
| Writing | $0.00032 | $0.32 | 414 / 491 | 2 of 5 |
| Math | $0.00015 | $0.15 | 411 / 175 | 5 of 5 |
| Summarization | $0.00011 | $0.11 | 515 / 99 | 3 of 5 |
| Data analysis | $0.00038 | $0.38 | 596 / 488 | 4 of 5 |
| Customer support | $0.00019 | $0.19 | 538 / 203 | 2 of 5 |
| Translation | $0.000099 | $0.10 | 452 / 111 | 5 of 5 |
| SQL | $0.00013 | $0.13 | 515 / 79 | 5 of 5 |
| RAG and answering from documents | $0.00015 | $0.15 | 665 / 92 | 5 of 5 |
| Agents and tool use | $0.00013 | $0.13 | 489 / 111 | 4 of 5 |
Across all 50 GLM 5.3 Flash replies: $0.00019 on average, $0.00015 at the median, $0.000057 for the cheapest and $0.0011 for the dearest. The GLM 5.3 Flash replies averaged 509 tokens in and 222 out, against the typical message's 4,000 in and 700 out: each test prompt starts a new chat, while a reply deep in a long chat rereads all of it.
GLM 5.3 Flash on each llmwise plan
In llmwise a GLM 5.3 Flash message is one of a published count, however long the reply runs, and you see what's left before you send.
Free: GLM 5.3 Flash is in the one-time trial of 5 messages, no card needed.
Pro, $20 a month: up to 60 GLM 5.3 Flash messages a day, on top of the monthly allowance the other models share.
Max, $50 a month: up to 120 GLM 5.3 Flash messages a day, on top of the monthly allowance the other models share.
Ultra, $100 a month: up to 200 GLM 5.3 Flash messages a day, on top of the monthly allowance the other models share.
Studio, $200 a month: up to 200 GLM 5.3 Flash messages a day, on top of the monthly allowance the other models share.
A $10 top-up doesn't add GLM 5.3 Flash messages: it tops up the monthly allowance, and GLM 5.3 Flash runs on its own daily count.
Every limit is published. Paid plans also have a monthly fair-use limit on AI cost: Pro $7.50, Max $20, Ultra $42, Studio $85. Using every message on your plan at typical sizes stays under it; very large messages and heavy research use it faster. Every limit, explained.
GLM 5.3 Flash against the other GLM models
Every GLM model in llmwise beside GLM 5.3 Flash, dearest first.
| Model | API, per 1M in / out | Input price against GLM 5.3 Flash | Average reply in our runs | On Pro |
|---|---|---|---|---|
| GLM 5.3Z.ai | $1.40 / $4.40 | 9.3 times GLM 5.3 Flash's | $0.00073 | Up to 250 a month |
| GLM 5.3 FlashZ.aiThis page | $0.15 / $0.50 | – | $0.00019 | Up to 60 a day |
GLM 5.3 Flash's own page: GLM 5.3 Flash: price, limits and messages on every plan. GLM 5.3 Flash passed 40 of the 50 test prompts these costs come from.
Questions
How much does a GLM 5.3 Flash message cost?
In our test runs, $0.00019 a reply on average through OpenRouter (median $0.00015), across 50 GLM 5.3 Flash replies to our test prompts. At the API price a typical GLM 5.3 Flash message of 4,000 tokens in and 700 out costs $0.0010; a long chat costs more, because every reply rereads it.
What is GLM 5.3 Flash's API price?
$0.15 per million input tokens and $0.50 per million output tokens, as of September 2026 (Z.ai's list price).
How many GLM 5.3 Flash messages does llmwise Pro include?
Up to 60 GLM 5.3 Flash messages a day on Pro ($20 a month), refilled at 00:00 UTC, on top of the monthly allowance.
Can I use GLM 5.3 Flash for free?
Yes, to try: GLM 5.3 Flash is in llmwise's one-time free trial of 5 messages.
Claude, GPT, Gemini, DeepSeek, Grok, Kimi, and GLM, in one chat.
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