Monthly roundup
June 2026 in AI models
A release-wave summary for readers who want the important changes without pretending every launch is a reason to switch.
The signal
11 releases plus 1 material status update
Anthropic, LongCat, OpenAI, Sakana AI, Z.ai, Moonshot AI, Microsoft AI, Qwen account for 11 tracked release events. 10 catalogued events link to a detailed comparison profile. 1 launch guide is available for deeper trade-off coverage. There is no single winner because the constraints are different.
At a glance
- Release events
- 11
- Profile links
- 10
What shipped and changed
- Release
LongCat-2.0
LongCat
LongCat's official API changelog announces LongCat-2.0 and billing availability.
Date note: Separate from April 20 2.0-Preview. Current 2.0 token rates remain unknown; the 2.5 pricing page is not a 2.0 tariff.
LongCat official API changelog 
Limited previewGPT-5.6 Luna
OpenAI
Fast, lower-cost GPT-5.6 tier included in the initial limited preview.
Date note: General availability followed on July 9, 2026.
OpenAI preview announcement- Limited preview
GPT-5.6 Sol
OpenAI
Limited preview for selected trusted partners and organisations.
Date note: General availability followed on July 9, 2026.
OpenAI preview announcement - Limited preview
GPT-5.6 Terra
OpenAI
Balanced GPT-5.6 tier included in the initial limited preview.
Date note: General availability followed on July 9, 2026.
OpenAI preview announcement 
Availability updateSakana Fugu
Sakana AI
Date note: Initial multi-model orchestration API launch. Underlying-model billing differs from fixed-price Ultra and Max; EU/EEA restrictions remain.
Sakana Fugu API launch
ReleaseGLM-5.2
Z.ai
Date note: Initial Coding Plan rollout preceded the June 16 public release post; QwenCloud records API availability on June 26.
Z.ai announcement- Status update
Claude Fable 5 access
Anthropic
Access was suspended for all users after a US government export-control directive.
Anthropic redeployment update 
ReleaseKimi K2.7 Code
Moonshot AI
Moonshot releases and open-sources Kimi K2.7 Code, available the same day via the Kimi API (Cloudflare Workers AI listed it on June 12 too).
Kimi (Moonshot AI) — K2.7 Code release post
Limited previewMAI-Thinking-1
Microsoft AI
Date note: Historical June 2 preview date remains unverified: the current primary announcement is dated August 12. A research PDF filename does not prove an availability date.
Microsoft AI announcement
Read the important launches