Tetris Arena

The game enumerates every legal placement. The model you pick chooses one. Code drops the piece.

Space start / pause R reset

Who plays

JevTypeSafe System One model. Picks one placement from the list with a probability per option, no text.Checking…GLM 5.3 FlashZhipu GLM 5.3 Flash via Ollama Cloud. Reads the board and answers with a JSON move.Checking…GPT-OSS 120BOpenAI GPT-OSS 120B via Ollama Cloud.Checking…Qwen 3.5 397BAlibaba Qwen 3.5 397B via Ollama Cloud.Checking…

Game

Speed 5

Gravity every 500 ms. The piece keeps falling while the model thinks; a slow answer arrives too late.

Pre-filled rows 0

Random garbage rows at the bottom, one to three gaps each, never a complete row. Applied on the next start.

Seed

Same seed = same piece order and same garbage, so two models can play the same game.

Show ghost piece the faint copy where the piece would land

Score0

Lines0

Level1

Pieces0

ReadyPick a model and press Start.

Idle

Decisions

Avg latency–

Fallbacks0

Too late0