What GLM 5.3 FlashX Legal is
GLM 5.3 FlashX Legal is a Z.ai model that went live on OpenRouter on November 2, 2026. It is the first Z.ai model of its line in the Whizi catalogue, so there is no earlier version to compare it with.
| Released | November 2, 2026 |
| Provider | Z.ai |
| Context window | 1M tokens |
| Input, per million tokens | $0.37 |
| Output, per million tokens | $1.25 |
| Credits per message in Whizi | 2 |
| Minimum Whizi plan | Powerhouse |
How to try GLM 5.3 FlashX Legal in Whizi
Whizi puts GLM 5.3 FlashX Legal in the same model picker as ChatGPT, Claude and Gemini, so there is no separate Z.ai account or API key to set up. Pick a plan on the pricing page, open a new chat, choose GLM 5.3 FlashX Legal in the model picker and send your first message.
Each message costs 2 credits, whatever its length. If a question turns out to suit another model better, switch in the same conversation and the thread carries across. See switching models mid-conversation.
What GLM 5.3 FlashX Legal costs
List rates are what the provider charges per token. The cost of one standard answer is the more useful number, because it prices the same unit of work across every model regardless of how each one is billed.
| Input, per million tokens | $0.37 |
| Output, per million tokens | $1.25 |
| One standard answer | $0.0010 |
| One thousand answers | $0.9950 |
| Context window | 1M tokens |
| Credits per message in Whizi | 2 |
| Minimum Whizi plan | Powerhouse |
| Rank by cost, of 136 priced models | 51 |
Prices are the published Z.ai rates as carried by OpenRouter, last refreshed 2026-11-04. The full dataset covering all 154 models from 42 providers is the AI model cost index, which is free to reuse with attribution.
What it costs inside Whizi
Whizi meters messages in credits rather than tokens, and GLM 5.3 FlashX Legal is charged at 2 credits per message. The cost does not change with the length of your message or the length of the answer, so a one line question and a long document analysis cost the same.
| Plan | Price per month | Monthly credits | Messages on this model |
|---|---|---|---|
| Powerhouse | $49.99, or $34.99 billed yearly | 10,000 | 5,000 |
GLM 5.3 FlashX Legal is part of the Powerhouse catalogue. Anything not explicitly listed on the Starter or Pro tiers resolves to Powerhouse, which is the deliberate default for the frontier and specialist models. See plans and limits.
- Input $0.37 and output $1.25 per million tokens
- $0.0010 for one standard answer, $0.9950 for a thousand
- 1M token context window
- 2 credits per message inside Whizi
- Requires the Powerhouse plan or above
- Ranks 51 of 136 priced models by cost per answer
Frequently asked questions
What is GLM 5.3 FlashX Legal?
GLM 5.3 FlashX Legal is a Z.ai model released on November 2, 2026, with a 1M token context window. It is the first Z.ai model of its line in the Whizi catalogue, so there is no earlier version to compare it with.
How do I use GLM 5.3 FlashX Legal?
Sign up for Whizi, open a new chat and choose GLM 5.3 FlashX Legal in the model picker. It is available on the Powerhouse plan and above at 2 credits per message, with no Z.ai account or API key needed.
How much does GLM 5.3 FlashX Legal cost?
$0.37 per million input tokens and $1.25 per million output tokens at list rates, which works out to $0.0010 for one standard answer of 1,000 tokens in and 500 out, or $0.9950 for a thousand of them. Inside Whizi it is 2 credits per message on a monthly allowance, rather than metered per token.
Which Whizi plan includes GLM 5.3 FlashX Legal?
Powerhouse and above, which is $49.99 per month or $34.99 billed yearly. At 2 credits per message, a Powerhouse allowance of 10,000 credits covers 5,000 messages on this model if you spend the whole allowance here, and most people mix in a 1 credit model for routine work so it goes further.
