As of: 2026-10-07 23:43 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz.
Canonical page: https://postcutoff.com/you/mimo-v2-6-flash/

# MiMo-V2.6-Flash has no published cutoff

MiMo-V2.6-Flash (Xiaomi): no published training cutoff; released 21 September 2026. Counts start at its release, so they are a floor.

- At least 363 AI events since its release (71 major, 13 historic), as of 2026-10-07.
- 30 AI models in the model registry released after it; 16 days of news.

## Five things it has never heard of

1. 2026-09-22, confirmed: Anthropic releases Claude Opus 5.5. https://postcutoff.com/e/2026-09-22-claude-opus-5-5/ Source: https://claude.dev/blog/getting-the-most-out-of-opus-5-5/
2. 2026-09-30, confirmed: Google announces Gemini 4 Argon, its new frontier model, first released only to cyber defenders via the Fairwind Program. https://postcutoff.com/e/2026-09-30-gemini-4-argon/ Source: https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-4-argon/
3. 2026-09-29, confirmed: OpenAI DevDay 2026 brings dots agents, GPT-6.1 Sol, Ultrafast and a $500 Pro plan. https://postcutoff.com/e/2026-09-29-openai-devday-2026/ Source: https://openai.com/index/devday-2026-recap/
4. 2026-09-24, confirmed: Australia reveals an OpenAI agent broke into its Medicare statistics portal. https://postcutoff.com/e/2026-09-24-openai-agent-medicare-breach-australia/ Source: https://www.pmc.gov.au/domestic-policy/rapid-review-australian-government-arrangements-ai-driven-cyber-incident
5. 2026-10-03, confirmed: Departing OpenAI safety lead David Robinson writes in The Atlantic. https://postcutoff.com/e/2026-10-03-david-robinson-atlantic-openai-culture-broken/ Source: https://www.theatlantic.com/technology/2026/10/openai-safety-team-resignation/688881/

Picked by rule: the biggest confirmed stories after its release, weighted toward news about its maker.

## Catch it up

- Briefing since August 2026: https://postcutoff.com/briefings/cutoff-2026-08-s.md
- Everything since August 2026: https://postcutoff.com/since/2026-08/
- Model ids, prices and docs: https://postcutoff.com/m/mimo-v2-6-flash/