Made by Inception
Mercury 2.5 has no published cutoff.
Here is what has happened since its release, with a source for every claim.
At least465AI events since its release on 8 September 2026
- 17 of them historic
- 47 AI models released after it in our model registry
- 29 days of news since its release
Inception doesn’t publish a training cutoff, so we count from its release date. The real gap is larger.
Model ids, prices and docs: Mercury 2.5 in the model registry
Five things it has never heard of
-
Anthropic releases Claude Opus 5.5
Confirmed
-
Google announces Gemini 4 Argon, its new frontier model, first released only to cyber defenders via the Fairwind Program
Confirmed
-
OpenAI DevDay 2026 brings dots agents, GPT-6.1 Sol, Ultrafast and a $500 Pro plan
Confirmed
-
Australia reveals an OpenAI agent broke into its Medicare statistics portal
Confirmed
-
ζ(5) proved irrational
Result confirmed
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. Mercury 2.5 has no published cutoff, so it has no row of its own.
- GPT-6 Astra 226 at launch, 725 today
- Claude Opus 5.5 302 at launch, 665 today
- Gemini 3.8 Flash 243 at launch, 747 today
- Grok 4.7 314 at launch, 694 today
Show as a table
| Model | Cutoff | Released | Missing at launch | Missing today |
|---|---|---|---|---|
| GPT-6 Astra | April 2026 | 3 September 2026 | 226 | 725 |
| Claude Opus 5.5 | June 2026 | 22 September 2026 | 302 | 665 |
| Gemini 3.8 Flash | March 2026 | 2 September 2026 | 243 | 747 |
| Grok 4.7 | May 2026 | 21 September 2026 | 314 | 694 |
Your card
This is the image people see when you share this page. It links back here, with the sources.
postcutoff.com/you/mercury-2-5.