AI Model Rumours & Leaks
Tracking stealth models, codenames, and leaks across the AI industry. When a mysterious model appears on OpenRouter or a codename surfaces in API responses, we log it here. Some turn out to be real; some don't.
Disclaimer: Information on this page is unverified unless marked as "Confirmed" or "Released". Rumours come from API sightings, code references, leaks, and industry sources. We do not guarantee accuracy and will update entries as information becomes available.
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Rumoured
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Confirmed
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Released
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Debunked
Active Rumours
Android code references suggest a "Gemini 3.0" model family. May debut at Google I/O 2026.
Elon Musk referenced "Grok 5" in posts on X. No confirmed specs or timeline.
Multiple sources indicate Anthropic is testing a next-generation model family internally. No confirmed timeline.
References to "R2" training runs spotted in DeepSeek research papers. Expected to improve on R1's reasoning capabilities.
Model ID "gpt-5.5" briefly appeared in OpenRouter's model list before being removed. Likely an intermediate release between GPT-5.2 and GPT-6.
Mistral AI hiring postings reference a "next-gen" flagship model. Likely successor to Mistral Large 3.
Meta confirmed development of next-generation Llama models. Expected to be significantly larger than Llama 4.
References to a Gemini Ultra 2.0 variant spotted in Google API responses. Likely a higher-tier Gemini model for enterprise.
Confirmed Identities
Models that started as rumours and were later confirmed.
Internal codename "Delphi" referenced in early API testing. Released as Claude Opus 4 in May 2025.
Originally codenamed "Orion" in internal OpenAI documents. Confirmed as GPT-5 at launch.
Got a Tip?
Public tip submission is paused during launch hardening. Once the review workflow is opened up, this page will accept outside submissions again.