LocalFit

Apertus-8B-Instruct-2509

swiss-ai/Apertus-8B-Instruct-2509

Released2025-09-02Size8.1B tensors · denseRoleAssistantLicenseapache-2.0Context64K config max

Where it runs 8K context · ≥ 5 t/s floor

SetupBest planMemoryGenerate
8 GB GPU + 32 GB RAMQ5_K_Mllama.cpp CUDAFull GPUFits~26–37 t/s Estimated
12 GB GPU + 32 GB RAMQ8_0llama.cpp CUDAFull GPUFits~30–32 t/s Estimated
16 GB GPU + 64 GB RAMQ8_0llama.cpp CUDAFull GPUFits~63–77 t/s Estimated
24 GB GPU + 64 GB RAMFP16llama.cpp CUDAFull GPUFits~35–43 t/s Estimated
32 GB GPU + 128 GB RAMFP16llama.cpp CUDAFull GPUFits~54–87 t/s Estimated
2× 24 GB GPUs + 128 GB RAMFP16llama.cpp CUDAFull GPUFits~32–41 t/s Estimated
96 GB workstation GPU + 256 GB RAMFP16llama.cpp CUDAFull GPUFits~56–87 t/s Estimated
Mac, 24 GBFP16llama.cpp MetalUnified memoryFits~12–14 t/s Estimated
Mac, 48 GBFP16llama.cpp MetalUnified memoryFits~12–14 t/s Estimated
Mac, 128 GBFP16llama.cpp MetalUnified memoryFits~19–29 t/s Estimated
Mac, 512 GBFP16llama.cpp MetalUnified memoryFits~21–32 t/s Estimated
DGX Spark 128 GBFP16llama.cpp CUDAUnified memoryFits~12–14 t/s Estimated
Ryzen AI Max+ 395, 128 GBFP16llama.cpp VulkanUnified memoryFits~8.4–12 t/s Estimated
CPU only, 64 GB DDR5-5600 dual channelQ4_K_Mllama.cpp CPUCPU onlyFits~3.6–4.3 t/s Estimated extrapolated

Same plan engine as the planner, with its default reserves and RAM. How plans are chosen.

Files exact Hugging Face bytes

ArtifactSizeFilesRevisionSource
FP16
mradermacher/Apertus-8B-Instruct-2509-GGUF
15.01 GiB13ff96561e4HF files
Q8_0
bartowski/swiss-ai_Apertus-8B-Instruct-2509-GGUF
7.98 GiB1d2ffbcc459HF files
Q5_K_M
bartowski/swiss-ai_Apertus-8B-Instruct-2509-GGUF
5.41 GiB1d2ffbcc459HF files
Q4_K_M
bartowski/swiss-ai_Apertus-8B-Instruct-2509-GGUF
4.71 GiB1d2ffbcc459HF files
MLX 8-bit 8-bit
mlx-community/Apertus-8B-Instruct-2509-8bit
7.97 GiB2fa890d8c0fHF files
MLX 4-bit 4-bit
mlx-community/Apertus-8B-Instruct-2509-4bit
4.22 GiB1c5e6ae2e52HF files
Native safetensors BF16
swiss-ai/Apertus-8B-Instruct-2509
15.00 GiB4b946d40447HF files

Not found in the representative quant search (not proven unavailable): EXL3, AWQ, GPTQ. Complete selected file sets; projectors, MTP/draft and lookup files are listed separately and budgeted only by plans that use them. File bytes are not allocated memory.

Quality

AA evaluated modeIndexLiveCodeBenchTerminal-Bench 2.1GPQAHLESource
Apertus 8B Instruct AA estimate4.80.0%—25.6%5.0%source

Arena text rating

Unknown

Publisher-reported benchmarks

None extracted from the model card.

AA and Arena describe the hosted model in the stated mode, not each quantized file; scores are never inherited by base, pruned, abliterated or quantized variants and never averaged together.

How to run it

No model-specific recipe in the research. The planner binds the backend’s documented command template (llama.cpp, Ollama, LM Studio, MLX, vLLM) to your plan: open a plan’s details.

Recipes are source examples (settings are the publisher’s or author’s, not measured optima) and were not executed by LocalFit. A downloadable file does not prove your backend build supports the architecture.

Reported speeds 0

No reported measurement yet. Submit one.