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// InternLM / Intern-S · Text LLM

internlm2-math-plus-mixtral8x22b: VRAM & local deployment

140.6B (MoE) parameters. About 96.2 GB at 4-bit and 312 GB at BF16 with one 8K-token request.

released 2024-05-24licence: Custom licence – read itmemory figures are estimates

01Specs

PublisherShanghai AI Lab · internlm
Family / seriesInternLM / Intern-S · internlm2-math-plus-mixtral8x22b
TypeText LLM (text-generation)
Parameters140.6B (MoE) Source: counted from official safetensors weights
Context length64K tokens (65,536)max_position_embeddings in config.json
Architecture56 layers · GQA · MoE
Released weightsBF16 · 281 GBdownload
Licenceother · Custom licence – read itThe publisher uses its own licence; we have not classified it. Read the licence text.
Released2024-05-24 (Hugging Face repo created)

02How much VRAM it needs (estimate)

Total = weights + 10% + 0.5GB overhead + KV cache for one request (FP16 KV). More concurrent users multiply the KV column.

PrecisionWeightsTotal @ 8KTotal @ 32KSmallest GPUMac
BF16 / FP16 (original)281 GB 312 GB317 GB 4 × RTX PRO 6000 (384GB)Mac 512GB
FP8 / INT8 / Q8_0149 GB 167 GB172 GB 4 × RTX PRO 6000 (384GB)Mac 256GB
4-bit (Q4_K_M / AWQ / GPTQ-Int4)85.3 GB 96.2 GB102 GB H200 141GBMac 256GB

KV cache per request: 8K 1.9 GB · 32K 7.5 GB

Bits per weight: BF16 16, FP8 8.5, 4-bit 4.85. “Fits” = total ≤ 90% of memory; Mac GPU can use ~2/3 of unified memory (≤36GB) or ~3/4 (larger). For MoE, all experts must be in memory, so size by total parameters. Method →

03How to run it

Only runtimes the publisher or the runtime’s official library names for this model.

Which inference engine to choose →

04Official repositories & quantised builds

1 official repo(s) from internlm.

05Other InternLM / Intern-S models

All 12 →
ModelParams4-bit totalReleased
Intern-S2-397B403.4B270 GB2026-09-13
Atria-Dawn-Preview753.3B504 GB2026-09-11
Intern-S2-Mobius36B24.7 GB2026-07-29
Intern-S2-Preview36.1B24.7 GB2026-05-15
Intern-S1-Pro1T / 22B669 GB2026-02-02
Intern-S1-mini8.54B7.4 GB2025-08-18
Intern-S1240.7B163 GB2025-07-24
internlm3-8b-instruct8.8B6.8 GB2025-01-13

06Sources

Data checked 2024-05-24. Parameters, context and licence are copied from the official repository; memory figures are our estimates.

Data updated: Self-host open models(UTC+8)