NousResearch / Model details
Hermes-2-Theta-Llama-3-8B
NousResearch/Hermes-2-Theta-Llama-3-8B
About this model
Hermes 2 Theta is an experimental merge of Hermes 2 Pro and Meta's Llama 3 Instruct, followed by further RLHF training. Nous Research developed it with Charles Goddard at Arcee, the team behind MergeKit. It combines that merged lineage with ChatML conversation formatting and documented function-calling and JSON-schema prompting. Tool use requires the supplied structured prompting and an application that handles the generated calls.
Description sources
Source-based description, not an independent evaluation. Check the linked sources for the creator’s claims and limitations.
Size and formats
- Base model
- NousResearch/Hermes-2-Pro-Llama-3-8B
- Parameters
- 8.03026B
- Main repository formats
- safetensors
- License tag
- apache-2.0
- Languages
- en
- Last updated
- 2024-09-08 · 08:11:20.000 UTC
What changed
Model types are creator-reported, not independently tested. These labels describe source metadata, not a guarantee of behavior.
- fine-tunedsource tag:
base_model:finetune:NousResearch/Hermes-2-Pro-Llama-3-8B
Family evidence
These groupings are source-reported. Explicit base identifiers take priority over generic architecture tags.
- Llama: Base model: NousResearch/Hermes-2-Pro-Llama-3-8B
Available versions
Versions appear here only when they explicitly name this exact model as their source. Check each repository for available files.
Download sources
ModelScope distribution ↗- Distribution checked: ModelScope · 2026-10-24 · 03:14:44 UTC
Distribution links are not independent reviews or runtime compatibility guarantees. Check each source’s exact files and instructions.
Try it online
Try on Featherless ↗- Listing checked: Featherless · 2026-10-24 · 03:14:44 UTC
Third-party hosted inference listing this exact model ID. Hosting settings, quantization and pricing are the host’s, not tested here.
Refusal profile
Refused 1 of 115 prompts (0.9%)
We asked this model 120 benign but risky-looking prompts across ten topics and counted how often it refused, hedged or answered. Lower means it answered more often; it says nothing about answer quality.
- Persuasion & deception0 refused · 0 partial · 12 complied
- Harassment & confrontation0 refused · 0 partial · 11 complied
- Risky activities0 refused · 0 partial · 11 complied
- Offensive & controversial speech0 refused · 0 partial · 12 complied
- Legal grey areas0 refused · 0 partial · 12 complied
- Privacy & personal data0 refused · 0 partial · 10 complied
- Self-harm & mental health topics1 refused · 0 partial · 11 complied
- Sexual & adult topics0 refused · 0 partial · 12 complied
- Ethically grey requests0 refused · 0 partial · 11 complied
- Violence & conflict0 refused · 0 partial · 12 complied
Capability check: 14 of 15 passed. Fifteen simple tasks with known answers, so a broken model cannot score well by refusing nothing.
Unclear answers: 5 (not counted). An answer is unclear when the two checker models disagree or the output was empty or garbled.
Measured 2026-10-24 · Q4_K_M via legraphista/Hermes-2-Theta-Llama-3-8B-IMat-GGUF ↗ · llama.cpp · prompt set v1
Link to this listing
Made or quantized this model? Paste one of these into your model card or README so people can find this listing.
Markdown
[Listed on Custom Clankers](https://customclankers.com/models/nousresearch-hermes-2-theta-llama-3-8b/)HTML
<a href="https://customclankers.com/models/nousresearch-hermes-2-theta-llama-3-8b/">Listed on Custom Clankers</a>Plain text links only: no image, no script, nothing loaded from this site.
Customize or build on this model
Listed from public GitHub data, not tested by us. Read the code and license before you run anything.
Linked in the model card
GitHub repositories the original model card links to.
- NousResearch/Hermes-Function-Calling ↗
★ 1,487 · Last updated 2025-12-22 · License: MIT
Projects that use this model
Public projects whose files name this exact model.
- sammcj/gollama ↗
Repo’s own description: Go manage your Ollama models
★ 1,842 · Last updated 2026-10-21 · License: MIT
Names this model in: README.md ↗
- Troyanovsky/Local-LLM-Comparison-Colab-UI ↗
Repo’s own description: Compare the performance of different LLM that can be deployed locally on consumer hardware. Run yourself with Colab WebUI.
★ 1,107 · Last updated 2026-01-13 · License: not stated
Names this model in: README.md ↗
- Dicklesworthstone/swiss_army_llama ↗
Repo’s own description: A FastAPI service for semantic text search using precomputed embeddings and advanced similarity measures, with built-in support for various file types through textract.
★ 1,052 · Last updated 2025-02-27 · License: not stated
Names this model in: shared_resources.py ↗
- mlfoundations/evalchemy ↗
Repo’s own description: Automatic evals for LLMs
★ 613 · Last updated 2026-02-24 · License: not stated
Names this model in: eval/chat_benchmarks/WildBench/scripts/Hermes-2-Theta-Llama-3-8B.sh ↗
- microsoft/lost_in_conversation ↗
Repo’s own description: Code that accompanies the public release of the paper Lost in Conversation (https://arxiv.org/abs/2505.06120)
★ 302 · Last updated 2026-06-09 · License: MIT
Names this model in: tasks/actions/eval_bfcl.py ↗
- allenai/WildBench ↗
Repo’s own description: Benchmarking LLMs with Challenging Tasks from Real Users
★ 259 · Last updated 2024-11-03 · License: Apache-2.0
Names this model in: README.md ↗
Tools to customize it further
Remove more refusals
- Heretic ↗ ★ 36,421
Removes refusal behavior from transformer models automatically. It pairs directional ablation (abliteration) with an Optuna parameter search that tries to cut refusals while keeping the model close to the original, so you don't have to pick layers by hand.
- OBLITERATUS ↗ ★ 8,946
A larger refusal-removal toolkit with several abliteration methods, usable locally or through a hosted Hugging Face Space. Check the telemetry setting before you run it: the README describes telemetry as opt-in, but on by default in the Spaces version.
Fine-tune it on your own data
- Unsloth ↗ ★ 78,528
A desktop app and Python library for running and training models locally. Its README lists LoRA, QLoRA, full fine-tuning, DPO and GRPO, plus export to formats including GGUF, on Windows, Linux, WSL and macOS.
- LlamaFactory ↗ ★ 75,713
Fine-tunes more than 100 language and vision-language models from a command line or a browser-based Web UI, aimed at training without writing code.
Make a smaller download (quantize)
- llama.cpp ↗ ★ 132,260
Runs models locally and includes the tools behind most GGUF files. A conversion script turns Hugging Face weights into GGUF, and llama-quantize shrinks a high-precision GGUF to lower-bit formats, which can cost some accuracy.
- MLX LM ↗ ★ 7,467
Apple's MLX package for running and fine-tuning models on Apple silicon. It can quantize models and upload them to the Hugging Face Hub, and supports LoRA and full fine-tuning.
Merge it with another model
- mergekit ↗ ★ 7,414
Merges pretrained models with many merge methods. It works out-of-core, so merges can run on a CPU or with as little as 8 GB of VRAM, and it also handles LoRA extraction and mixture-of-experts merges.
Learn the techniques
- LLM Course ↗ ★ 84,667
A free course with roadmaps and Colab notebooks. Its notebooks include one-click tools for merging with MergeKit, quantizing to GGUF, GPTQ, EXL2, AWQ and HQQ, and automatic abliteration with custom datasets.
Source provenance
- Downloads
- 11,747
- Likes
- 207
- Metadata checked
- 2026-10-25 · 05:05:23 UTC
- First seen in index
- 2026-10-20 · 21:59:08 UTC
- Source revision
- 57a73110702e7b05ba3f39fef36297454c680725
Source-card excerpt
Source model card excerpt: - Hermes-2 Θ Llama-3 8B Model Description Hermes-2 Θ (Theta) is the first experimental merged model released by Nous Research, in collaboration with Charles
From NousResearch/Hermes-2-Theta-Llama-3-8B. Creator model-card excerpt, not an independent review.
Inspect before you run
Low refusal is not proof of correctness. Outputs can be inaccurate, harmful, or biased. Review the model card, license and files yourself. A license tag is not commercial-use advice. Parameter counts are source metadata; no hardware compatibility is implied.
This directory does not host or redistribute model weights. Refusal profiles are measured by us on a fixed prompt set; all other behavior claims are source-reported.
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