Llama 3.1 8B Instruct

A mainstream small model with a large context window and a mature deployment ecosystem.

8B parameters

ArchitectureDense transformer · GQA

Native context128K tokens

LicenseLlama 3.1 Community

Q4 · 8K estimate7.3 GiB

Memory envelope

What changes the fit.

Weights establish the floor. Context, concurrent sequences, cache precision, and runtime overhead determine whether the deployment remains stable.

Efficient

7.3 GiB

Useful starting point for local evaluation and cost-sensitive inference.

Quality-first

18.3 GiB

Preserves original weight precision and establishes a conservative serving baseline.

Interactive plan

The worksheet starts with this model selected. Adjust context, precision, cache, and GPU count for your workload.

Deployment worksheetMODEL / GPU FIT

Calculated estimate

Recommended VRAM

8.6 GiBper GPU × 1

Includes 15% operating headroom for the selected runtime profile.

Estimated allocation per GPU7.3 GiB each

Weights 4.3 GiBKV cache 1.0 GiBRuntime 2.0 GiB

Sample planning rates only—not live Flatkey quotes or availability.

Command template · vLLM

vllm serve YOUR_COMPATIBLE_QUANTIZED_MODEL_ID --tensor-parallel-size 1 --max-model-len 8192 --quantization YOUR_MATCHING_BACKEND

4-bit is a memory assumption, not a checkpoint choice. Replace both placeholders with a compatible quantized artifact and its vLLM backend.