Best local AI model for RTX 3060 12GB.

The strongest defensible small open-weight default. Qwen3-8B is current enough, scores well on general and reasoning evals relative to its size, and fits cleanly at Q5/Q6 on 12GB. No 2026 8B model clearly displaces it in public open-weight evidence.

Recommendation Full matrix

01 / Recommendation

Run this size class.

Recommended default

Qwen3-8B

Use Q5/Q6 GGUF, 16k-32k practical. This is the highest-scoring current open-weight model that fits this card cleanly, selected by benchmark then fit then freshness, not by parameter count.

Benchmark anchor

Qwen3 family benchmarked as a major step over Qwen2.5; strongest general/reasoning profile per parameter in the small open-weight class.

Evidence

Qwen3 is explicitly positioned as a major jump over Qwen2.5; older Llama 3.1 8B and Mistral 7B rows are compatibility fallbacks, not winners.

02 / Alternates

Other realistic picks.

Qwen3-4B for longer context

Llama 3.1 8B (legacy fallback)

Mistral 7B (very low-resource fallback)

03 / More GPUs

Compare another card.

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