Model reference · open weights

Nous-Hermes-llama-2

LLMs NousResearch Text gen 1 build Open weights 21k dl/mo

Nous-Hermes-llama-2 is an open-weight language model from NousResearch. Nous-Hermes-llama-2-7b (BF16) weighs 13.5 GB; the smallest configuration that runs it is 2× RTX 3060 12 GB.

  • Nous-Hermes-llama-2 is a 6.7B parameter text-generation model developed by NousResearch.
  • It is fine-tuned on over 300,000 instructions and supports a context length of 4096 tokens in English.
  • The model is released under the MIT license.

Summary of the NousResearch/Nous-Hermes-llama-2-7b model card, 2026-10-01

What it is

Released byNousResearch
Released2023-07-25
Parameters6.7B
VRAM13.5 GB for the weights

What it runs on

Memory and cards for Nous-Hermes-llama-2-7b (BF16)

13.5 GBweights, file size
524 MBcache per 1K tokens
620 MBruntime overhead, at least
4,096 tokenscontext max
CardRequests at onceContext maxMemory
4K each
RTX 3060 12 GB——11.6 GB
RTX 4060 Ti 16 GB—2K15.4 GB
RTX 3090 24 GB4all 4K23.4 GB
RTX 4090 24 GB4all 4K23.4 GB
RTX 5090 32 GB7all 4K31.0 GB
L40S 48 GB13all 4K44.0 GB
A100 80 GB29all 4K78.2 GB
H100 80 GB28all 4K78.1 GB
RTX PRO 6000 Blackwell 96 GB35all 4K93.8 GB
DGX Spark (GB10) 128 GB unified42all 4K107 GB
H200 141 GB56all 4K138 GB
B200 180 GB73all 4K176 GB
2× RTX 3060 12 GB
tensor parallel
3all 4K11.6 GB a card
2× RTX 4060 Ti 16 GB
tensor parallel
7all 4K15.4 GB a card
2× RTX 4090 24 GB
tensor parallel
14all 4K23.4 GB a card
2× RTX 3090 24 GB
tensor parallel
14all 4K23.4 GB a card
2× RTX 5090 32 GB
tensor parallel
22all 4K31.0 GB a card
Memory needed at each load
Requests at once4K tokens each
116.2 GB
524.8 GB
831.3 GB
1648.5 GB
3282.8 GB
64152 GB

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

From the model card

What NousResearch says about Nous-Hermes-llama-2

Read the model card

Compute provided by our project sponsor Redmond AI, thank you! Follow RedmondAI on Twitter @RedmondAI.

Model Description

Nous-Hermes-Llama2-7b is a state-of-the-art language model fine-tuned on over 300,000 instructions. This model was fine-tuned by Nous Research, with Teknium leading the fine tuning process and dataset curation, Redmond AI sponsoring the compute, and several other contributors.

This Hermes model uses the exact same dataset as Hermes on Llama-1. This is to ensure consistency between the old Hermes and new, for anyone who wanted to keep Hermes as similar to the old one, just more capable.

This model stands out for its long responses, lower hallucination rate, and absence of OpenAI censorship mechanisms. The fine-tuning process was performed with a 4096 sequence length on an 8x a100 80GB DGX machine.

Model Training

The model was trained almost entirely on synthetic GPT-4 outputs. Curating high quality GPT-4 datasets enables incredibly high quality in knowledge, task completion, and style.

This includes data from diverse sources such as GPTeacher, the general, roleplay v1&2, code instruct datasets, Nous Instruct & PDACTL (unpublished), and several others, detailed further below

Collaborators

The model fine-tuning and the datasets were a collaboration of efforts and resources between Teknium, Karan4D, Emozilla, Huemin Art and Redmond AI.

Special mention goes to @winglian for assisting in some of the training issues.

Huge shoutout and acknowledgement is deserved for all the dataset creators who generously share their datasets openly.

Among the contributors of datasets:

  • GPTeacher was made available by Teknium
  • Wizard LM by nlpxucan
  • Nous Research Instruct Dataset was provided by Karan4D and HueminArt.
  • GPT4-LLM and Unnatural Instructions were provided by Microsoft
  • Airoboros dataset by jondurbin
  • Camel-AI's domain expert datasets are from Camel-AI
  • CodeAlpaca dataset by Sahil 2801.

If anyone was left out, please open a thread in the community tab.

Prompt Format

The model follows the Alpaca prompt format:

### Instruction:

### Response:

or

### Instruction:

### Input:

### Response:

GPT4All:

|-------------|------:|--------|-----:|---|-----:|
|arc_challenge|      0|acc     |0.4735|±  |0.0146|
|             |       |acc_norm|0.5017|±  |0.0146|
|arc_easy     |      0|acc     |0.7946|±  |0.0083|
|             |       |acc_norm|0.7605|±  |0.0088|
|boolq        |      1|acc     |0.8000|±  |0.0070|
|hellaswag    |      0|acc     |0.5924|±  |0.0049|
|             |       |acc_norm|0.7774|±  |0.0042|
|openbookqa   |      0|acc     |0.3600|±  |0.0215|
|             |       |acc_norm|0.4660|±  |0.0223|
|piqa         |      0|acc     |0.7889|±  |0.0095|
|             |       |acc_norm|0.7976|±  |0.0094|
|winogrande   |      0|acc     |0.6993|±  |0.0129|
Average: 0.686

BigBench:

|                      Task                      |Version|       Metric        |Value |   |Stderr|
|------------------------------------------------|------:|---------------------|-----:|---|-----:|
|bigbench_causal_judgement                       |      0|multiple_choice_grade|0.5579|±  |0.0361|
|bigbench_date_understanding                     |      0|multiple_choice_grade|0.6233|±  |0.0253|
|bigbench_disambiguation_qa                      |      0|multiple_choice_grade|0.3062|±  |0.0288|
|bigbench_geometric_shapes                       |      0|multiple_choice_grade|0.2006|±  |0.0212|
|                                                |       |exact_str_match      |0.0000|±  |0.0000|
|bigbench_logical_deduction_five_objects         |      0|multiple_choice_grade|0.2540|±  |0.0195|
|bigbench_logical_deduction_seven_objects        |      0|multiple_choice_grade|0.1657|±  |0.0141|
|bigbench_logical_deduction_three_objects        |      0|multiple_choice_grade|0.4067|±  |0.0284|
|bigbench_movie_recommendation                   |      0|multiple_choice_grade|0.2780|±  |0.0201|
|bigbench_navigate                               |      0|multiple_choice_grade|0.5000|±  |0.0158|
|bigbench_reasoning_about_colored_objects        |      0|multiple_choice_grade|0.4405|±  |0.0111|
|bigbench_ruin_names                             |      0|multiple_choice_grade|0.2701|±  |0.0210|
|bigbench_salient_translation_error_detection    |      0|multiple_choice_grade|0.2034|±  |0.0127|
|bigbench_snarks                                 |      0|multiple_choice_grade|0.5028|±  |0.0373|
|bigbench_sports_understanding                   |      0|multiple_choice_grade|0.6136|±  |0.0155|
|bigbench_temporal_sequences                     |      0|multiple_choice_grade|0.2720|±  |0.0141|
|bigbench_tracking_shuffled_objects_five_objects |      0|multiple_choice_grade|0.1944|±  |0.0112|
|bigbench_tracking_shuffled_objects_seven_objects|      0|multiple_choice_grade|0.1497|±  |0.0085|
|bigbench_tracking_shuffled_objects_three_objects|      0|multiple_choice_grade|0.4067|±  |0.0284|
Average: 0.3525

AGIEval

|             Task             |Version| Metric |Value |   |Stderr|
|------------------------------|------:|--------|-----:|---|-----:|
|agieval_aqua_rat              |      0|acc     |0.2520|±  |0.0273|
|                              |       |acc_norm|0.2402|±  |0.0269|
|agieval_logiqa_en             |      0|acc     |0.2796|±  |0.0176|
|                              |       |acc_norm|0.3241|±  |0.0184|
|agieval_lsat_ar               |      0|acc     |0.2478|±  |0.0285|
|                              |       |acc_norm|0.2348|±  |0.0280|
|agieval_lsat_lr               |      0|acc     |0.2843|±  |0.0200|
|                              |       |acc_norm|0.2765|±  |0.0198|
|agieval_lsat_rc               |      0|acc     |0.3271|±  |0.0287|
|                              |       |acc_norm|0.3011|±  |0.0280|
|agieval_sat_en                |      0|acc     |0.4660|±  |0.0348|
|                              |       |acc_norm|0.4223|±  |

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

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