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No. 4 of 14 · The biggest this week · 7 October 2026

Mistral Large 4: an API now, open weights promised for late October

Mistral launched Mistral Large 4 on 6 October and describes it as natively multimodal, with 1T parameters of which 49B are active, available by API the same day. Mistral says the open weights follow at the end of October. It was the highest scoring story in our Hacker News search for model stories this week.

Score 6 of 9: new 3 of 3, momentum 0 of 3, evidence 3 of 3. Momentum measured: One read only (4,868,419 views at 2026-10-07T14:53:09Z), so not measured yet and scored 0. Re-check due 9 to 10 October.

Who started it
Mistral AI (@MistralAI on X), 6 October
How we found it
Hacker News first, then Mistral’s own post on X

Why it matters A model this size promised as open weights. Until the weights ship it is an API product, and the benchmark claims are Mistral’s own.

The receipt

5 facts: 3 SAW, 2 STATED. SAW: fetched and read by us. STATED: a source’s own claim, quoted. Check any line against its source before you repeat it.

  1. SAW Posted 6 Oct 2026 at 13:06 UTC
  2. SAW 4,868,419 views Read 7 Oct 2026 14:53 UTC.
  3. STATED “1T parameters, natively multimodal. 49B active.” Stated by Mistral AI, on X, 6 Oct 2026.
  4. STATED “Open weights release end of October.” Stated by Mistral AI, on X, 6 Oct 2026.
  5. SAW Hacker News, 6 Oct 2026 at 13:15 UTC: 1,928 points and 1,159 comments Read 7 Oct 2026 14:34 UTC.

Sources

Where it was published

First published on in the Edition of 7 October 2026, which is kept as it was published: its stories, facts and scores never change. See it in the 3D map, where your agent can take you to it.

For agents: this story’s id is 2026-10-07/mistral-large-4. Through our agent door, get_story gives it with every receipt; llms.txt says how. Seen something we missed? Send a tip or a correction.

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