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GPT Nerf

We watch frontier labs for silent cuts, so you don't have to. Mid models stay off this page. If a flagship gets quieter, it lands here — with the pelican canary and the indexed writeup.

Latest confirmed frontier incident 2 days ago

GPT-6 Astra · Sep 12, 2026, 4:00 PM UTC

Frontier now

as of Sep 14, 2026
  1. GPT-6 Astra OpenAI
    retest

    Lab named three defects and reset usage. House pelican not re-run after the fix.Sep 12

  2. GPT-5.6 Sol OpenAI
    quiet

    Same post-launch cycle in July. No sourced claim that it is still happening.Jul 20

  3. Claude Opus 5 Anthropic
    quiet

    No sourced incident on the ledger.—

  4. Claude Fable 5.1 Anthropic
    quiet

    Launch pelican was clean. No nerf claim since.Sep 1

  5. Kimi K3 Moonshot
    quiet

    Frontier, watched. Nothing on the book.—

  6. Gemini 3 Deep Think Google
    quiet

    Launch pelican was strong. No later cut on the ledger.Jun 29

  7. Qwen3.8 Max Alibaba
    quiet

    Frontier, watched. Nothing on the book.—

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Nerf history

confirmed alleged pelican

Pelican board

Same prompt. Frontier only. House test is ours.

House canary · Sep 14, 2026

A pelican takes the scenic route

Animated SVG, pouch on the bill, both legs on the pedals. This is the drawing we re-run when someone says a flagship got quieter.

ours
OpenAI · Sep 4

GPT-6 Astra

Launch-day grid: every Astra level beat the best Sol pelican. Low already looked like a bird on a bike.

strong
OpenAI · Sep 12

GPT-6 Astra, week two

Quality complaints a week later. House re-run not posted yet. Slot reserved.

retest
Anthropic · Sep 1

Claude Fable 5.1

Launch-day animated pelican. Clean frame, pouch, pedaling.

strong
Google · Jun 29

Gemini 3 Deep Think

Called the best pelican-on-a-bike SVG Willison had seen from any model at the time.

strong
OpenAI · Jul 9

GPT-5.6 Sol

Family grid of 18 pelicans. Even xhigh Sol stayed abstract next to later Astra drawings.

mid
Anthropic · pending

Claude Opus 5

Frontier, watched. No house re-run on the board yet.

pending
Moonshot · pending

Kimi K3

Frontier, watched. Not on this board until we or a cited source run the exact prompt.

pending
Alibaba · pending

Qwen3.8 Max

Frontier, watched. Slot reserved for a house run.

pending

Indexed posts

Google-indexed writeups and sourced posts. Frontier only.

  1. confirmed Sep 12, 2026

    GPT-6 Astra users say the newest model got dumber. It happened before, too.

    A week after launch, identical-prompt tests look worse. OpenAI later named three defects, including a context experiment on 4,000–5,000 users, and reset Codex usage. Sol went through the same cycle in July.

    Decrypt → Yellow →
  2. alleged Sep 11, 2026

    Launch-day vs today: same prompt, worse Astra

    synthwavedd called it a post-launch lobotomy. Pranjal Paliwal took back an AGI take after reading the code. Salio and Md Ismail Sojal both reran identical prompts. Dax Raad’s Opencode team switched back to Sol.

    Decrypt →
  3. pelican Sep 4, 2026

    The pelican comparison grid for Astra is pretty interesting

    Simon Willison’s launch-day SVG canary. Every Astra pelican, from low to max, looked better than the best Sol drawing. Astra low cost 9.55¢ and still won.

    simonwillison.net →
Show older posts Show fewer ↓
  1. pelican Sep 1, 2026

    Claude Fable 5.1 made a really nice animated pelican

    Launch-day Fable 5.1 SVG. The bird is a pelican, the bike is a bike, the pouch is a pouch.

    simonwillison.net →
  2. alleged Jul 20, 2026

    GPT-5.6 Sol went through the same post-launch cycle

    Launch fireworks, then a week of “it got dumber” posts. That is the pattern this site exists to timestamp.

    Decrypt →
  3. pelican Jun 29, 2026

    Gemini 3 Deep Think tops the pelican SVG test

    Informal, no score — one of the few public canaries that survives a launch week.

    AI Weekly →

Frontier only. Confirmed means a lab admitted a quality incident. Alleged means a sourced community claim. Pelican means the SVG canary.

Tips, pelican SVGs, and sponsor mail: ubermensch1218@gmail.com

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