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positron-ai/openai_gpt-oss-20b-hf-bf16

sourceHugging Faceapache-2.0updated 27d agoView on Hugging Face

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Positron AI BF16 Checkpoint

This repository contains an unquantized bf16 checkpoint of openai/gpt-oss-20b published by Positron AI.

The upstream release of openai/gpt-oss-20b ships its weights in MXFP4; this checkpoint is that release dequantized to bf16 by Positron AI. No further quantization was applied.

Recommended Use

Use this artifact as a full-precision (bf16) reference or baseline for openai/gpt-oss-20b, for example when comparing quantized builds against an unquantized checkpoint. It is not a quantized build and carries no quantization configuration.

Artifact Summary

Field	Value
Base model	openai/gpt-oss-20b
Published artifact	positron-ai/openai_gpt-oss-20b-hf-bf16
Weight precision	bf16 (dequantized from upstream MXFP4)
Quantization	none
Release date	2026-08-25
License	apache-2.0

Validation

KL-divergence is not reported: it measures drift between a quantized artifact and its bf16 reference, and this artifact is the bf16 reference.

License

openai/gpt-oss-20b is released under the Apache License 2.0. The upstream LICENSE and USAGE_POLICY files are included in this repository verbatim, copied from openai/gpt-oss-20b at revision 6cee5e81ee83917806bbde320786a8fb61efebee.

Provenance

This artifact was produced by Positron AI from openai/gpt-oss-20b. The original model license and usage restrictions continue to apply.