FROM GPT-2 TO GPT-OSS: ANALYZING THE ARCHITECTURAL ADVANCES

Summary from the TLDR AI newsletter

After six years of keeping its models locked up, OpenAI's gpt-oss makes some bold architectural bets that go against industry consensus, using just 32 large experts instead of the hundreds of smaller ones favored by competitors like Qwen3. The gpt-oss models employ alternating sliding-window attention layers and MXFP4 quantization, which allows them to match the performance of much larger systems.