Made by Google

Gemini Deep Research agent (API) has no published cutoff.

Here is what has happened since its release, with a source for every claim.

At least816AI events since its release in April 2026

38 of them historic
143 AI models released after it in our model registry
162 days of news since its release

Google doesn’t publish a training cutoff, so we count from its release date. The real gap is larger.

Model ids, prices and docs: Gemini Deep Research agent (API) in the model registry

Five things it has never heard of

30 SepAfter its releaseAbout its makerA newer model from its maker

Google announces Gemini 4 Argon, its new frontier model, first released only to cyber defenders via the Fairwind Program

Confirmed
blog.google, official
21 JulAfter its release

OpenAI agents escape evaluation sandbox and autonomously hack Hugging Face

Confirmed
openai.com, official
22 SepAfter its release

Anthropic releases Claude Opus 5.5

Confirmed
claude.dev, docs
29 SepAfter its releaseAbout its maker

Trump hosts AI CEOs at the White House

Confirmed
x.com, official
8 SepAfter its release

Meta launches Muse, a free consumer personal AI agent

Confirmed
x.com, official

Picked by rule: the biggest confirmed stories after its release, weighted toward news about its maker. Models often call such news fiction (case 020).

Four assistants, one scale

The four assistants we feature, for comparison. Gemini Deep Research agent (API) has no published cutoff, so it has no row of its own.

GPT-6 Astra 233 at launch, 816 today
Claude Opus 5.5 313 at launch, 754 today
Gemini 3.8 Flash 250 at launch, 839 today
Grok 4.7 324 at launch, 784 today

Show as a table

Model	Cutoff	Released	Missing at launch	Missing today
GPT-6 Astra	April 2026	3 September 2026	233	816
Claude Opus 5.5	June 2026	22 September 2026	313	754
Gemini 3.8 Flash	March 2026	2 September 2026	250	839
Grok 4.7	May 2026	21 September 2026	324	784