Best AI models that run on Single RTX A6000 48 GB (Ampere) build
What models fit this build
Single RTX A6000 48 GB (Ampere) build has 46 GB of usable memory. Here's which open-weights model sizes fit at each quant, at ~8K context with an FP8 KV cache.
Largest comfortable fit: 70–72B at Q4 (~44 GB).
| Model size | Q2 | Q4 | Q5 | Q8 |
|---|---|---|---|---|
| 7–8B | Fits | Fits | Fits | Fits |
| 13–14B | Fits | Fits | Fits | Fits |
| 30–32B | Fits | Fits | Fits | Fits |
| 70–72B | Fits | Fits | Won't fit | Won't fit |
| ~120B MoE | Won't fit | Won't fit | Won't fit | Won't fit |
| ~235B MoE | Won't fit | Won't fit | Won't fit | Won't fit |
| ~670B MoE | Won't fit | Won't fit | Won't fit | Won't fit |
| 1T+ MoE | Won't fit | Won't fit | Won't fit | Won't fit |
✓ = the weights + FP8 KV cache fit within this build's usable memory at ~8K context. Longer context needs more — size any model in the picker →
Closed-frontier reference (May 2026)
What "API-grade" actually scores right now. Use this as the ceiling — anything local will lag here by some margin, and that's fine for most workflows.
Gemini 3.1 Pro
- HLE44.7%
- Terminal-Bench 280.2%
- SWE-Bench Pro54.2%
- SWE-Bench Ver80.6%
- Aider Polyglot—
- LiveCodeBench91.7%
- GPQA Diamond94.3%
- MMLU-Pro91.0%
Coding: Coding-strong, especially repo-level work with 2M context. Less of a Cursor/Cline default than Claude — Gemini Code Assist users prefer it. Top of leaderboards on GPQA + LCB. Now #7 on OpenRouter coding by volume (120B tokens) — Gemini 3.5 Flash will displace it next month.
Agent: TB2 80.2 makes it agent-grade. Used widely on Google's Agent Builder; less common in Open-Claude/Hermes. Reliable in long Vertex-AI Agent runs (multi-hour).
ChatGPT 5.5
- HLE52.2%
- Terminal-Bench 282.0%
- SWE-Bench Pro58.6%
- SWE-Bench Ver88.7%
- Aider Polyglot88.0%
- LiveCodeBench—
- GPQA Diamond93.6%
- MMLU-Pro—
Coding: Codex CLI + GPT-5.5 is the top of Terminal-Bench. r/ChatGPTCoding has shifted to it for daily coding; Cursor users mixed (some prefer Claude Sonnet 4.6 for diff quality).
Agent: Strongest published agent score (TB2 82.0%, re-verified 2026-05-14). Widely used in OpenAI Assistants, AutoGPT-style swarms, and Open-Claude routing. Reliable in 4-8h autonomous sessions.
Claude Sonnet 5
- HLE57.4%
- Terminal-Bench 280.4%
- SWE-Bench Pro63.2%
- SWE-Bench Ver—
- Aider Polyglot—
- LiveCodeBench—
- GPQA Diamond—
- MMLU-Pro—
Coding: Anthropic's 2026-06-30 release: near-Opus intelligence at the old Sonnet price. Terminal-Bench 2.1 jumps to 80.4 (from Sonnet 4.6's 53.4), putting it in the top tier of agentic coders next to GPT-5.5 (82) and Gemini 3.1 Pro (80.2). 1M context, adaptive thinking on by default; the daily workhorse for Cursor / Zed / Cline users who want closed-model diff quality.
Agent: TB2 80.4 makes Sonnet 5 a top-tier agent driver (Sonnet 4.6 was mid-tier at 53.4). SWE-Bench Pro 63.2 lands between GPT-5.5 (58.6) and Opus 4.7 (69.2). Anthropic's tool-use SDK keeps it the most reliable closed model for hand-rolled agent loops.
Claude Opus 4.8
- HLE57.9%
- Terminal-Bench 2—
- SWE-Bench Pro69.2%
- SWE-Bench Ver88.6%
- Aider Polyglot—
- LiveCodeBench—
- GPQA Diamond93.6%
- MMLU-Pro—
Coding: Cursor / Cline / Zed power-user pick when budget allows. SWE-Pro 69.2 and TB2.1 74.6 say it all — best closed model for real software engineering. Simon Willison describes it as 'a modest but tangible improvement' over Opus 4.7 (simonwillison.net/2026/May/28/claude-opus-4-8/). 4x less likely to miss code flaws vs predecessor.
Agent: Top closed agent with SWE-Pro 69.2 and new 'dynamic workflow' tooling (Claude Code 2.1.154). Powers production Hermes / Open-Claude setups. TB2.1 74.6 per Anthropic self-report — TB2.0 leaderboard not yet updated. Fast mode at $10/$50 reduces agentic cost vs standard rate.
Our picks for this build
Sourced from the State of Local AI snapshot — the model + quant + backend we'd actually deploy on this hardware today, with the recipe in the setup guide below.
Qwen 3.6 27B (dense)
Apr 22 2026. Dense 27B that hits 77.2% SWE-Bench Verified — beats much larger MoEs on coding. Vision-capable, 262 K native context. Best single-24 GB-card coder right now.
- HLE24.0%
- TB259.3%
- SWE-Pro53.5%
- SWE-Ver77.2%
Coding: The new local-coding king under 200B on r/LocalLLaMA — matches Claude Opus 4.5 on TB2 per Qwen's launch claims, beats Qwen3.5-397B-A17B on every coding eval. Daily-driver pick for Cline at Q4_K_M on a single Pro 6000 or M3 Ultra. Confirmed running ~160 tok/s with MTP on RTX 6000 per dzombak.com vLLM recipe.
Agent: Genuinely useful in Open-Claude / Claude Code routing — community reports 30-min+ sessions completing without derail. Still trails closed frontier on the very longest loops. Caps at agents:3 per site rule (sub-200B, TB2 59.3 below 65% threshold).
Qwen 3.6 35B-A3B (MoE)
Apr 2026 release. 35B / 3B active MoE — beats Gemma 4-31B on agentic coding, matches Sonnet on most vision tasks. Native 262 K context (extensible to 1 M), ~18 GB at Q4. The new local-coding king under 200 B.
- HLE21.4%
- TB251.5%
- SWE-Pro49.5%
- SWE-Ver73.4%
Coding: r/LocalLLaMA's pick for fast local coding on a 24 GB card at Q4_K_M — 3B active so it's snappy. Vibes-codes 'perfectly fine' in OpenCode/Claude Code per multiple weekly-megathreads. Simon Willison's pelican test (April 2026): 'Qwen3.6-35B-A3B on my laptop drew me a better pelican than Claude Opus 4.7' — still resonating in the community.
Agent: Solid in 5-15 tool-hop loops in Cline. Long-horizon (60+ min) Open-Claude sessions still lose thread — 3B active is a ceiling on planning. Note: Qwen-self-reported TB2 51.5 vs community 23-24% — gap is harness-driven (Terminus-2 vs little-coder agent).
Every open-weights model that fits, ranked by composite score
Composite blends benchmark averages (60 %) with editorial 0-5 ratings (40 %). Closed-frontier references mix into the ranking and stay amber-tinted.
| Model↕ | tg/s↕ | pp↕ | TTFT @ 100K↕ | HLE↕ | TB2↕ | SWE-Pro↕ | SWE-Ver↕ | Aider↕ | LCB↕ | GPQA↕ | MMLU-Pro↕ | Score↕ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Qwen 3.5 9B9 B · dense🤗 | 67 t/s | 4,900 pp | 28 s | — | — | — | — | — | 65.6% | 81.7% | 82.5% | 4623 |
DiffusionGemma 26B-A4B26 B · 4 B active · diffusion-moe🤗 | 72 t/s | 1,350 pp | 1.8 min | — | — | — | — | — | 69.1% | 73.2% | 77.6% | 4358 |
Qwen 3.6 27B (dense)27 B · dense🤗 | 24 t/s | 1,350 pp | 1.8 min | 24.0% | 59.3% | 53.5% | 77.2% | — | 83.9% | 87.8% | 86.2% | 4280 |
Qwen 3 32B32 B · dense🤗 | 20 t/s | 1,350 pp | 1.8 min | — | — | — | — | — | — | 65.7% | 65.5% | 4278 |
| 42 t/s | 2,800 pp | 48 s | — | — | — | — | — | — | 56.1% | 70.4% | 4160 | |
Qwen 3.6 35B-A3B (MoE)35 B · 3 B active · moe🤗 | 72 t/s | 1,350 pp | 1.8 min | 21.4% | 51.5% | 49.5% | 73.4% | — | 80.4% | 86.0% | 85.2% | 4084 |
Gemma 4 12B Unified (dense)12 B · dense🤗 | 49 t/s | 2,800 pp | 48 s | 5.2% | — | — | — | — | 72.0% | 78.8% | 77.2% | 3759 |
Gemma 4 31B (dense)31 B · dense🤗 | 21 t/s | 1,350 pp | 1.8 min | 19.5% | 42.9% | 35.7% | 52.0% | — | 80.0% | 84.3% | 85.2% | 3697 |
Mistral Small 3 24B24 B · dense🤗 | 27 t/s | 1,350 pp | 1.8 min | — | — | — | — | — | — | 45.3% | 66.0% | 3361 |
Gemma 3 27B27 B · dense🤗 | 24 t/s | 1,350 pp | 1.8 min | — | — | — | — | — | — | 42.4% | 67.5% | 3321 |
Gemma 4 26B-A4B (MoE)26 B · 4 B active · moe🤗 | 72 t/s | 1,350 pp | 1.8 min | 8.7% | 34.2% | 13.8% | 17.4% | — | 77.1% | 82.3% | 82.6% | 3060 |
Qwen 3 Coder 30B-A3B (MoE)30 B · 3 B active · moe🤗 | 72 t/s | 1,350 pp | 1.8 min | — | — | — | 50.3% | — | — | — | — | 3042 |
Llama 3.1 8B8 B · dense🤗 | 75 t/s | 4,900 pp | 28 s | — | — | — | — | — | — | 34.6% | 49.0% | 2527 |
| 75 t/s | 4,900 pp | 28 s | 2.8% | — | — | — | — | — | 47.0% | 65.5% | 2325 | |
| Gemini 3.1 ProGoogle DeepMind · closed | 125 t/s | — | 2.1 min | 44.7% | 80.2% | 54.2% | 80.6% | — | 91.7% | 94.3% | 91.0% | — |
| ChatGPT 5.5OpenAI · closed | 61 t/s | — | 1.6 min | 52.2% | 82.0% | 58.6% | 88.7% | 88.0% | — | 93.6% | — | — |
| Claude Sonnet 5Anthropic · closed | — | — | — | 57.4% | 80.4% | 63.2% | — | — | — | — | — | — |
| Claude Opus 4.8Anthropic · closed | 59 t/s | — | 2.9 min | 57.9% | — | 69.2% | 88.6% | — | — | 93.6% | — | — |
Last updated 2026-07-11