| 1 | # Features |
| 2 | |
| 3 | ## Compatibility Matrix |
| 4 | |
| 5 | The tables below show mutually exclusive features and the support on some hardware. |
| 6 | |
| 7 | The symbols used have the following meanings: |
| 8 | |
| 9 | - ✅ = Full compatibility |
| 10 | - 🟠 = Partial compatibility |
| 11 | - ❌ = No compatibility |
| 12 | - ❔ = Unknown or TBD |
| 13 | |
| 14 | !!! note |
| 15 | Check the ❌ or 🟠 with links to see tracking issue for unsupported feature/hardware combination. |
| 16 | |
| 17 | ### Feature x Feature |
| 18 | |
| 19 | <style> |
| 20 | td:not(:first-child) { |
| 21 | text-align: center !important; |
| 22 | } |
| 23 | td { |
| 24 | padding: 0.5rem !important; |
| 25 | white-space: nowrap; |
| 26 | } |
| 27 | |
| 28 | th { |
| 29 | padding: 0.5rem !important; |
| 30 | min-width: 0 !important; |
| 31 | } |
| 32 | |
| 33 | th:not(:first-child) { |
| 34 | writing-mode: vertical-lr; |
| 35 | transform: rotate(180deg) |
| 36 | } |
| 37 | </style> |
| 38 | |
| 39 | | Feature | [CP](../configuration/optimization.md#chunked-prefill) | [APC](automatic_prefix_caching.md) | [LoRA](lora.md) | [SD](speculative_decoding/README.md) | CUDA graph | [pooling](../models/pooling_models/README.md) | <abbr title="Encoder-Decoder Models">enc-dec</abbr> | <abbr title="Logprobs">logP</abbr> | <abbr title="Prompt Logprobs">prmpt logP</abbr> | <abbr title="Async Output Processing">async output</abbr> | multi-step | <abbr title="Multimodal Inputs">mm</abbr> | best-of | beam-search | [prompt-embeds](prompt_embeds.md) | |
| 40 | | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
| 41 | | [CP](../configuration/optimization.md#chunked-prefill) | ✅ | | | | | | | | | | | | | | | |
| 42 | | [APC](automatic_prefix_caching.md) | ✅ | ✅ | | | | | | | | | | | | | | |
| 43 | | [LoRA](lora.md) | ✅ | ✅ | ✅ | | | | | | | | | | | | | |
| 44 | | [SD](speculative_decoding/README.md) | ✅ | ✅ | ❌ | ✅ | | | | | | | | | | | | |
| 45 | | CUDA graph | ✅ | ✅ | ✅ | ✅ | ✅ | | | | | | | | | | | |
| 46 | | [pooling](../models/pooling_models/README.md) | 🟠\* | 🟠\* | ✅ | ❌ | ✅ | ✅ | | | | | | | | | | |
| 47 | | <abbr title="Encoder-Decoder Models">enc-dec</abbr> | ❌ | [❌](https://github.com/vllm-project/vllm/issues/7366) | ❌ | [❌](https://github.com/vllm-project/vllm/issues/7366) | ✅ | ✅ | ✅ | | | | | | | | | |
| 48 | | <abbr title="Logprobs">logP</abbr> | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | ✅ | ✅ | | | | | | | | |
| 49 | | <abbr title="Prompt Logprobs">prmpt logP</abbr> | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | ✅ | ✅ | ✅ | | | | | | | |
| 50 | | <abbr title="Async Output Processing">async output</abbr> | ✅ | ✅ | ✅ | ❌ | ✅ | ❌ | ❌ | ✅ | ✅ | ✅ | | | | | | |
| 51 | | multi-step | ❌ | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ | | | | | |
| 52 | | [mm](multimodal_inputs.md) | ✅ | ✅ | [🟠](https://github.com/vllm-project/vllm/pull/4194)<sup>^</sup> | ❔ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ❔ | ✅ | | | | |
| 53 | | best-of | ✅ | ✅ | ✅ | [❌](https://github.com/vllm-project/vllm/issues/6137) | ✅ | ❌ | ✅ | ✅ | ✅ | ❔ | [❌](https://github.com/vllm-project/vllm/issues/7968) | ✅ | ✅ | | | |
| 54 | | beam-search | ✅ | ✅ | ✅ | [❌](https://github.com/vllm-project/vllm/issues/6137) | ✅ | ❌ | ✅ | ✅ | ✅ | ❔ | [❌](https://github.com/vllm-project/vllm/issues/7968) | ❔ | ✅ | ✅ | | |
| 55 | | [prompt-embeds](prompt_embeds.md) | ✅ | ✅ | ✅ | ❌ | ✅ | ❌ | ❌ | ✅ | ❌ | ❔ | ❔ | ✅ | ❔ | ❔ | ✅ | |
| 56 | |
| 57 | \* Chunked prefill and prefix caching are only applicable to last-token or all pooling with causal attention. |
| 58 | <sup>^</sup> LoRA is only applicable to the language backbone of multimodal models. |
| 59 | |
| 60 | ### Feature x Hardware |
| 61 | |
| 62 | | Feature | Volta | Turing | Ampere | Ada | Hopper | CPU | AMD | Intel GPU | |
| 63 | | ------- | ----- | ------ | ------ | --- | ------ | --- | --- | --------- | |
| 64 | | [CP](../configuration/optimization.md#chunked-prefill) | [❌](https://github.com/vllm-project/vllm/issues/2729) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 65 | | [APC](automatic_prefix_caching.md) | [❌](https://github.com/vllm-project/vllm/issues/3687) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 66 | | [LoRA](lora.md) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 67 | | [SD](speculative_decoding/README.md) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 68 | | CUDA graph | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | ✅ | [❌](https://github.com/vllm-project/vllm/issues/26970) | |
| 69 | | [pooling](../models/pooling_models/README.md) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 70 | | <abbr title="Encoder-Decoder Models">enc-dec</abbr> | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | ✅ | |
| 71 | | [mm](multimodal_inputs.md) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 72 | | [prompt-embeds](prompt_embeds.md) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ❔ | ✅ | |
| 73 | | <abbr title="Logprobs">logP</abbr> | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 74 | | <abbr title="Prompt Logprobs">prmpt logP</abbr> | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 75 | | <abbr title="Async Output Processing">async output</abbr> | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ | ✅ | |
| 76 | | multi-step | ✅ | ✅ | ✅ | ✅ | ✅ | [❌](https://github.com/vllm-project/vllm/issues/8477) | ✅ | ✅ | |
| 77 | | best-of | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 78 | | beam-search | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | |
| 79 | |
| 80 | !!! note |
| 81 | For information on feature support on Google TPU, please refer to the [TPU-Inference Recommended Models and Features](https://docs.vllm.ai/projects/tpu/en/latest/recommended_models_features/) documentation. |