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Shanghai AI Lab · open-weights

P1-235B-A22B

P1-235B-A22B is an open-weights language model from Shanghai AI Lab, released November 17, 2025. It has 235B parameters (mixture-of-experts, 22B active). The context window is 256K tokens.

Recent progress in large language models (LLMs) has moved the frontier from puzzle-solving to science-grade reasoning-the kind needed to tackle problems whose answers must stand against nature, not merely fit a rubric.

Check it against your own PC →

Lab
Shanghai AI Lab
Released
November 17, 2025
Weights
Open apache-2.0
Parameters
235B MoE · 22B active
Context
256K
Price / M tokens
–
Epoch ECI
not yet rated

Can you run P1-235B-A22B locally?

The smallest common GPU it runs on is 32 GB of VRAM (with 32 GB of RAM): IQ1_M, GPU + experts in RAM, roughly 18 tokens per second. 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 VRAMToo large––––
8 GB VRAMToo large––––
12 GB VRAMToo large––––
16 GB VRAMToo large––––
24 GB VRAMToo large––––
32 GB VRAMRuns · GPU + CPU expertsIQ1_M (experimental)31.2 GB24.0 GB~18

Ready-made quantizations on Hugging Face: introvoyz041/P1-235B-A22B-mlx-4Bit

Benchmark results

Epoch AI has not published results for P1-235B-A22B yet. New models are usually evaluated within days to weeks.

Links

Announcement · Hugging Face: PRIME-RL/P1-235B-A22B

More from Shanghai AI Lab

MinerU2.5

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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