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Carnegie Mellon University · open-weights

Mamba-3 180M

Mamba-3 180M is an open-weights language model from Carnegie Mellon University, released September 18, 2025. Its makers disclosed about 0.2B parameters.

The recent scaling of test-time compute for LLMs has restricted the practical deployment of models to those with strong capabilities that can generate high-quality outputs in an inference-efficient manner.

Check it against your own PC →

Lab
Carnegie Mellon University
Released
September 18, 2025
Weights
Open
Parameters
0.2B disclosed
Context
–
Price / M tokens
–
Epoch ECI
not yet rated

Can you run Mamba-3 180M locally?

Even with 32 GB of VRAM and 32 GB of RAM it is too large to run at a usable speed on a single consumer GPU. Estimates assume 32 GB of DDR5 RAM, a 16K context and llama.cpp-style GGUF quantization. Enter your exact hardware in the live app.

GPU memoryVerdictBest quantVRAMRAMtok/s
6 GB VRAMSize unknown––––
8 GB VRAMSize unknown––––
12 GB VRAMSize unknown––––
16 GB VRAMSize unknown––––
24 GB VRAMSize unknown––––
32 GB VRAMSize unknown––––

Parameter count unknown. The weights may not be on Hugging Face yet.

Benchmark results

Epoch AI has not published results for Mamba-3 180M yet. New models are usually evaluated within days to weeks.

Links

Announcement

More from Carnegie Mellon University

Mamba-3 880M · Mamba-3 1.5B · Mamba-3 440M

Data updated Thu, 12 Nov 2026 09:42 UTC. Benchmarks, Capabilities Index and model announcements: Epoch AI, “Capabilities & benchmarking” and “Data on AI models” (CC BY 4.0); category scores are ModelTape's own fit on Epoch's results. Releases and prices: models.dev (MIT). Sizes and quantizations: Hugging Face. “Runs on” figures are estimates from model size, quantization and memory bandwidth (±30–50%).
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