Highlights

1. Post Training Loss: Introducing the first open-source optimized post-training losses in Liger Kernel with ~80% memory reduction, featuring DPO, CPO, ORPO, SimPO, JSD, and more. No more OOM nightmares for post-training ML researchers!

2. AMD CI: With AMD’s generous sponsorship of MI300s, we’ve integrated them into our CI. Special thanks to Embedded LLM for building the AMD CI infrastructure. #428
3. XPU Support: In collaboration with Intel, we now support XPU, demonstrating comparable performance gains with other vendors. #407

What's Changed

• Adds the CPO Alignment Loss Function by @pramodith in #382
• Qwen2-VL Training Example w/ Liger by @tyler-romero in #389
• Support Qwen2-VL's multimodal RoPE implementation by @li-plus in #384
• add xpu device support for rms_norm by @faaany in #379
• fix qwen2 import failure in test by @ByronHsu in #394
• Add Chunked SimPO Loss by @pramodith in #386
• Add script to reproducibly run examples on Modal by @tyler-romero in #397
• add nn.module support for chunked loss function by @shivam15s in #402
• Generalize JSD to FKL/RKL by @yundai424 in #393
• Enable keyword arguments for liger functional by @hongpeng-guo in #400
• add reference model logps to chunkedloss interface and fix dpo loss fn by @shivam15s in #405
• Optimize CE Loss by casting dtype to float32 inside kernel by @pramodith in #406
• Xpu support by @mgrabban in #407
• Fix get_batch_loss_metrics comments by @austin362667 in #413
• Add rebuild to CI by @ByronHsu in #415
• Fix os env by @ByronHsu in #416
• Adjust QWEN2 VL Loss rtol by @austin362667 in #412
• [tiny] Add QwQ to readme (same arch as Qwen2) by @tyler-romero in #424
• Enhance Cross Entropy Softcap Unit Test by @austin362667 in #423
• Add ORPO Trainer + support HF metrics directly from chunked loss functions + fixes to avoid torch compile recompilations by @shivam15s in #429
• Add Build Success/Fail Badge by @hebiao064 in #431
• Switch amd-ci to use MI300X runner. by @saienduri in #428
• [CI] rename ci and add cron job for amd by @ByronHsu in #433
• [CI] shorten ci name by @ByronHsu in #434
• update ci icon on readme by @bboyleonp666 in #440
• Introduce Knowledge Distillation Base by @austin362667 in #432
• [AMD] [CI] Clean up amd-ci by @tjtanaa in #436
• Add xpu in env report by @abhilash1910 in #443
• Specify scheduled CI in AMD badge by @ByronHsu in #446
• improve code quality for chunk loss by @ByronHsu in #448
• Add paper link and formula for preference loss by @ByronHsu in #449
• Make kernel doc lean by @ByronHsu in #450
• Fix LigerCrossEntropyLoss Reduction Behavior for "None" Mode by @hebiao064 in #435
• add eng blog by @ByronHsu in #452
• add chunked loss to readme by @shivam15s in #453
• change chunked readme by @shivam15s in #454
• add sponsorship and collab by @ByronHsu in #457
• version bump to 0.5.0 by @shivam15s in #455
• Add HIP (ROCm) and Liger Kernel to env report by @Comet0322 in #456

New Contributors

• @li-plus made their first contribution in #384
• @faaany made their first contribution in #379
• @hongpeng-guo made their first contribution in #400
• @mgrabban made their first contribution in #407
• @hebiao064 made their first contribution in #431
• @saienduri made their first contribution in #428
• @bboyleonp666 made their first contribution in #440
• @abhilash1910 made their first contribution in #443
• @Comet0322 made their first contribution in #456