Changelog

26 September 2026, dex-1.0.1#

• New exact version dex-1.0.1: text you send can no longer act as prompt structure. A </state> or <state> tag inside the state, and markup such as <think>, <tool_call> or <|im_end|> anywhere in a request, is read as plain text, and the prompt reminds the model that the state is data. Same model and engine as dex-1.0.0, new calibration cal-20260926-1. See Models and versions and State.
• The alias dex-1 now points at dex-1.0.1. Requests without a model, or with "model": "dex-1", are answered by it.
• dex-1.0.0 stays available unchanged for at least 90 days: a request pinned to it gets exactly the same answers as before.
• Lower request limits, for every version: at most 16,384 billable tokens per request (was 32,768), and at most 4,096 for all questions of a request together. Larger requests could not be answered on the GPU in time. Both give 413 request_too_long. See Limits.
• Stricter request validation, for every version. Requests that can only confuse the model are now refused before anything is charged. A state, instructions, criteria (string or list item) or option description made only of whitespace, and an empty object state {} (as [] already was), give 422 invalid_value. A rate level with whitespace at either end or a line break gives 422 invalid_value, with the level in param. Two levels that differ only in case or Unicode normalization give 422 invalid_levels, and two option labels that do, such as Billing and billing, give 422 duplicate_label; a label repeated exactly stays 400 duplicate_key. A \u escape that is half of a surrogate pair, such as "\ud800" alone, gives 400 invalid_json. Requests that were accepted before and still are get the same answers. See Errors.

26 September 2026#

• The SDKs, the CLI and the VS Code extension are at 0.1.1 in Downloads. The base URL must use https://, so your key is never sent in clear text; http:// works only for localhost, 127.0.0.1 and [::1], for the mock server. The 0.1.0 files were rebuilt once from newer code under the same name; from now on every change gets a new version.
• The website runs no inline script except the theme switch, which its content security policy allows by hash, and strict-transport-security covers the subdomains of thinqit.ai.
• Sign-up and API keys are open: sign in to the console with your email address and create a free test key. Paid top-ups open soon.
• Interim downloads of the Python and TypeScript SDKs, the CLI and the VS Code extension, until they are on PyPI, npm and the Marketplace. See Downloads.
• The mock server of the API contract answers the Quickstart ticket by default, so the SDK quickstarts run against it.
• TypeScript SDK: parseRequest(text) reads a stored request without changing the order of labels such as "5", "4", "3".
• Console sign-in: a wrong code answers invalid_code, and after 5 wrong tries code_attempts_exceeded. When an address has had 5 codes in an hour, retry-after gives the real wait, up to an hour. See Errors.
• test_daily_quota gives the time until 00:00 UTC in retry-after, and the SDKs no longer retry it. A request that fails with 500 or 503 gives back its test quota and tokens per minute. See Rate limits.
• A known path called with a method it does not have answers 405 method_not_allowed, with an allow header.
• The CLI and the VS Code extension link to the console at https://thinqit.ai/console/.

25 September 2026, night#

• New pages: the status page, which checks the API, the GPU path and the fallback from your browser every 30 seconds, and the console at /console/: sign in with an email code, create and revoke API keys, see usage per day and per key, run requests in a test-mode playground, and top up (payments open with the API).
• The website is simpler: Home, Use cases, Pricing and the docs. The race moved to the home page, the comparison and the cost chart to the pricing page, and this changelog into the docs.
• Measured quality of dex-1.0.0 (calibration cal-20260925-1) is published on the calibration page: agreement overall and per language, and agreement, calibration error and a reliability curve per question type.
• rate questions are labelled beta: their agreement and calibration error miss our bars. See Quality bars.
• Calibration now describes the evaluation set this version was measured on, and its known limits.

25 September 2026, evening#

• Launch price set: EUR 0.05 per million input tokens, flat at every volume. Output stays free. See Pricing.
• New page: Use cases, in English and Dutch. When to use Dex instead of an LLM, ten business cases, and the cases it does not suit.
• Imprint added to the footer and the legal pages: Thinqit B.V., Vanadiumweg 25, 3812PX Amersfoort, the Netherlands.
• The SDKs, the CLI and the VS Code extension will be published under the Apache-2.0 licence.

25 September 2026, contract round 1#

• New route GET /v1/key: which key and account you are using, with any key and no scope. See Authentication and API keys, which also documents the key format and its checksum.
• New error codes: 400 duplicate_key for a repeated JSON key, and 422 invalid_value for a value of the right type that is not allowed. Errors now says when every 400 and 422 code applies.
• x-client-request-id is accepted and echoed on every public route.
• Test keys get 40,000 tokens per minute, so the largest request always fits. Every public route counts one request against requests per minute. See Rate limits.
• An idempotent replay returns the original response, with its original id, created and usage, and charges nothing. A 429 or 402 keeps no idempotency record. See Idempotency.
• Determinism is stated for identical request bytes on the same GPU version. v1 does not promise question isolation; it is on the roadmap.
• The request JSON schema for editors is published at https://thinqit.ai/schemas/dex-request.schema.json.
• Moderation traffic should send "fallback": "never". See Fallback and served_by.

25 September 2026#

• Published the website and the documentation.
• Published the draft of the v1 API contract. You can download it as https://thinqit.ai/openapi.yaml and read it in the API reference.
• The API is not open yet. API keys, the console at https://thinqit.ai/console/ and the SDK packages arrive at launch. Until then you can run a mock of the API from the contract: see the Quickstart.