← Thursday, October 1, 2026Models & trainingTool

TurboGPT trains a tiny byte-level transformer in CUDA C++

github.com Editor score 7/10

The project trains on 1.5 billion tokens and reports 2.5295 bits per byte, with checkpoints and batch-level logs. Its compact CUDA training implementation and measured result make it worth examining for engineers interested in low-level training systems.

Point
TurboGPT is a tiny byte-level GPT training project written in CUDA C++; its title describes a 22KiB transformer trained in 13 seconds.
Point
The excerpt reports 2.5295 BPB after training on 1.5G tokens.

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