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ValueError: Expected a cuda device, but got: cpu

Status: Closed (completed).

#1791 In bitsandbytes-foundation/bitsandbytes;

· by piyushK52 was closed on Oct 30, 2025

4-bit model used more RAM than bf16 in HF transformers

Status: Open.

#1780 In bitsandbytes-foundation/bitsandbytes;

· weathon opened on Oct 7, 2025

quantize_blockwise (CPU) occurs Segmentation fault when all block elements are zero

x64 CPU

Status: Open.

Bug

#1744 In bitsandbytes-foundation/bitsandbytes;

· im0qianqian opened on Sep 2, 2025

· 

v0.49.0

TypeError: device() received an invalid combination of arguments

Status: Closed (completed).

#1737 In bitsandbytes-foundation/bitsandbytes;

· by BrazilForever11 was closed on Sep 3, 2025

Assertion Error during Optimizer State Checkpointing in FSDP2 (bf16 Model + 8-bit Optimizer)

FSDP

OptimizersIssues or feature requests relating to optimizersIssues or feature requests relating to optimizers

Status: Open.

#1732 In bitsandbytes-foundation/bitsandbytes;

· EvelynKimm opened on Aug 22, 2025

ImportError: Using <code>bitsandbytes</code> 4-bit quantization requires the latest version of bitsandbytes: <code>pip install -U bitsandbytes</code>

Proposing to Close

Status: Closed (completed).

#1731 In bitsandbytes-foundation/bitsandbytes;

· by BrazilForever11 was closed on Aug 25, 2025

Fix QuantState and dict conversions

Status: Open (in progress).

bitsandbytes-foundation/bitsandbytesnumber 1729

#1729 In bitsandbytes-foundation/bitsandbytes;

· cyyever opened on Aug 18, 2025

add py.typed

Low RiskRisk of bugs in transformers and other librariesRisk of bugs in transformers and other libraries

Status: Merged (completed).

bitsandbytes-foundation/bitsandbytesnumber 1726

#1726 In bitsandbytes-foundation/bitsandbytes;

· by cyyever was closed on Aug 25, 2025

· 

v0.48.0

Problems occur when loading 8-bit quantized models using FSDP

FSDP

Status: Open.

Feature

#1709 In bitsandbytes-foundation/bitsandbytes;

· Piggy-ch opened on Jul 14, 2025

Error invalid argument at line 337 in file /src/csrc/pythonInterface.cpp

Hugging Face IntegrationAn issue or PR that is related to the interaction between bitsandbytes and HF libraries.An issue or PR that is related to the interaction between bitsandbytes and HF libraries.

OptimizersIssues or feature requests relating to optimizersIssues or feature requests relating to optimizers

Status: Open.

#1708 In bitsandbytes-foundation/bitsandbytes;

· mikekg opened on Jul 12, 2025

CUDA SETUP: Required library version not found: libbitsandbytes_cuda128.dll?

Likely Not a BNB Issue

Windows

Status: Open.

#1698 In bitsandbytes-foundation/bitsandbytes;

· Romanio1997 opened on Jul 3, 2025

[WIP] Enable Ascend NPU Backend with Custom Ops Integration for NF4 Support

Ascend NPURelated to Ascend NPU backendRelated to Ascend NPU backend

Status: Open (in progress).

bitsandbytes-foundation/bitsandbytesnumber 1695

#1695 In bitsandbytes-foundation/bitsandbytes;

· SlightwindSec opened on Jul 2, 2025