Frontier Log

Stealth Launch

2025

  1. OpenRouter

    Quasar Alpha (stealth)

    Cloaked 1M-context model on OpenRouter, free to test; revealed as an early test of GPT-4.1.

  2. OpenRouter

    Optimus Alpha (stealth)

    Second cloaked 1M-context model on OpenRouter; revealed as another test of GPT-4.1.

  3. OpenRouter

    Cypher Alpha (stealth)

    Cloaked 1M-context model on OpenRouter with native tool calling; its lab is not revealed.

  4. OpenRouter

    Horizon Alpha (stealth)

    Cloaked 256K-context model on OpenRouter with image input; revealed as an earlier iteration of GPT-5.

  5. OpenRouter

    Horizon Beta (stealth)

    Improved version of Horizon Alpha on OpenRouter, 256K context; revealed as an earlier GPT-5.

  6. OpenRouter

    Sonoma Dusk Alpha (stealth)

    Faster sibling of Sonoma Sky, 2M context; revealed as an early test version of Grok 4 Fast.

  7. OpenRouter

    Sonoma Sky Alpha (stealth)

    Cloaked 2M-context model on OpenRouter; revealed as an early test version of Grok 4 Fast.

  8. OpenRouter

    Andromeda Alpha (stealth)

    Cloaked small reasoning vision model on OpenRouter; revealed as NVIDIA Nemotron Nano 2 VL.

  9. OpenRouter

    Polaris Alpha (stealth)

    Cloaked 256K-context model on OpenRouter; revealed as an early GPT-5.1 snapshot.

2026

  1. OpenRouter

    Pony Alpha (stealth)

    Cloaked coding and agentic model on OpenRouter; revealed as an early testing version of GLM-5.

  2. OpenRouter

    Aurora Alpha (stealth)

    Cloaked reasoning model built for speed on OpenRouter, 128K context; its lab is not revealed.

  3. OpenRouter

    Healer Alpha (stealth)

    Cloaked omni-modal model taking text, image, audio and video; revealed as Xiaomi MiMo-V2-Omni.

  4. OpenRouter

    Hunter Alpha (stealth)

    Cloaked 1T-parameter, 1M-context agentic model on OpenRouter; revealed as Xiaomi MiMo-V2-Pro.

  5. OpenRouter

    Elephant Alpha (stealth)

    Cloaked 100B-parameter text model, 256K context; revealed as inclusionAI's Ling-2.6-flash.

  6. OpenRouter

    Owl Alpha (stealth)

    Cloaked agentic model on OpenRouter with 1M context; revealed as Meituan's LongCat-2.0.