Model reference · open weights

Amber

LLMs IFM Text gen 1 build Open weights 2k dl/mo

Amber is an open-weight language model from IFM. Amber (BF16) weighs 13.5 GB; the smallest configuration that runs it is RTX 4060 Ti 16 GB.

For self-hosting, compare this build's requirements below with the GPU you plan to rent.

  • Amber is a 6.7B parameter English text-generation model developed by IFM as part of the LLM360 Pebble series.
  • It uses the LLaMA architecture with a maximum sequence length of 2048 tokens and is released under the Apache 2.0 license.
  • The model card provides access to 360 training checkpoints and the full pretraining data sequence.

Summary of the IFM/Amber model card, 2026-10-01

What it is

Released byIFM
Released2023-12-07
Parameters6.7B
VRAM13.5 GB for the weights

What it runs on

Memory and cards for Amber (BF16)

13.5 GBweights, file size
524 MBcache per 1K tokens
620 MBruntime overhead, at least
2,048 tokenscontext max
CardRequests at onceContext maxMemory
2K each
RTX 3060 12 GB11.6 GB
RTX 4060 Ti 16 GB1all 2K15.4 GB
RTX 3090 24 GB8all 2K23.4 GB
RTX 4090 24 GB8all 2K23.4 GB
RTX 5090 32 GB15all 2K31.0 GB
L40S 48 GB27all 2K44.0 GB
A100 80 GB59all 2K78.2 GB
H100 80 GB56all 2K78.1 GB
RTX PRO 6000 Blackwell 96 GB71all 2K93.8 GB
DGX Spark (GB10) 128 GB unified84all 2K107 GB
H200 141 GB112all 2K138 GB
B200 180 GB147all 2K176 GB
2× RTX 3060 12 GB
tensor parallel
7all 2K11.6 GB a card
2× RTX 4060 Ti 16 GB
tensor parallel
14all 2K15.4 GB a card
Memory needed at each load
Requests at once2K tokens each
115.2 GB
519.5 GB
822.7 GB
1631.3 GB
3248.5 GB
6482.8 GB

One card, with vLLM's small-card settings.

From the model card

What IFM says about Amber

Read the model card

Amber is an7B English language model with the LLaMA architecture. Amber is part of LLM360's Pebble model series.

360 model checkpoints and the full data sequence are available under the Apache 2.0 license.

Evaluations

MetricScore
ARC-C42.57
HellaSwag73.91
MMLU28.53
TruthfulQA43.67
WinoGrande64.35

Amber is not a SOTA model. Amber is released to make LLM training knowledge accessible to all.

Please refer to our W&B project page for complete training logs and evaluation results.

Final 10 Checkpoints

Checkpoints
Checkpoint 358Checkpoint 353
Checkpoint 357Checkpoint 352
Checkpoint 356Checkpoint 351
Checkpoint 355Checkpoint 350
Checkpoint 354Checkpoint 349
  • 360 checkpoints are available for download
  • To downloading other checkpoints, change the branch from 'main' to the checkpoint you want (e.g. 'ckpt_000').
  • This is completed on the 'Files and versions' tab (to the right of the Model Card).

🟠 Loading Amber

To load a specific checkpoint, simply pass a revision with a value between "ckpt_000" and "ckpt_358". If no revision is provided, it will load "ckpt_359", which is the final checkpoint.

from transformers import LlamaTokenizer, LlamaForCausalLM

tokenizer = LlamaTokenizer.from_pretrained("LLM360/Amber", revision="ckpt_356")
model = LlamaForCausalLM.from_pretrained("LLM360/Amber", revision="ckpt_356")

input_text = "translate English to German: How old are you?"
input_ids = tokenizer(input_text, return_tensors="pt").input_ids

outputs = model.generate(input_ids)
print(tokenizer.decode(outputs[0]))

🟠 Amber Training Details

Datasets and Mix

Access the fully processed Amber pretraining data here

SubsetTokens (Billion)
Arxiv30.00
Book28.86
C4197.67
Refined-Web665.01
StarCoder291.92
StackExchange21.75
Wikipedia23.90
Total1259.13

🟠 Model Description

Model HyperparameterValue
Total Parameters6.7B
Hidden Size4096
Intermediate Size (MLPs)11008
Number of Attention Heads32
Number of Hidden Lyaers32
RMSNorm ɛ1e^-6
Max Seq Length2048
Vocab Size32000

About LLM360

LLM360 is an initiative for comprehensive and fully open-sourced LLMs, where all training details, model checkpoints, intermediate results, and additional analyses are made available to the community. Our goal is to advance the field by inviting the community to deepen the understanding of LLMs together. As the first step of the project LLM360, we release all intermediate model checkpoints, our fully-prepared pre-training dataset, all source code and configurations, and training details. We are committed to continually pushing the boundaries of LLMs through this open-source effort.

🟠 Citation

BibTeX:

@misc{liu2023llm360,
      title={LLM360: Towards Fully Transparent Open-Source LLMs},
      author={Zhengzhong Liu and Aurick Qiao and Willie Neiswanger and Hongyi Wang and Bowen Tan and Tianhua Tao and Junbo Li and Yuqi Wang and Suqi Sun and Omkar Pangarkar and Richard Fan and Yi Gu and Victor Miller and Yonghao Zhuang and Guowei He and Haonan Li and Fajri Koto and Liping Tang and Nikhil Ranjan and Zhiqiang Shen and Xuguang Ren and Roberto Iriondo and Cun Mu and Zhiting Hu and Mark Schulze and Preslav Nakov and Tim Baldwin and Eric P. Xing},
      year={2023},
      eprint={2312.06550},
      archivePrefix={arXiv},
      primaryClass={cs.CL}
}

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

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