NousResearch: Hermes 2 Pro – Llama-3 8B
Analysis Summary
NousResearch's Hermes 2 Pro is a fine-tuned variant of Meta's Llama-3 8B, positioned as an instruction-following and tool-use model. However, it carries no independent benchmark data, making it impossible to verify its reasoning, coding, or content quality against the broader model landscape.
For businesses, the lack of benchmark coverage means any deployment decision relies on community evaluations or internal testing rather than standardised measures. The 8K context window is a practical constraint for document-heavy tasks, and the text-only modality limits its applicability to multimodal workflows.
At $0.14 per million tokens in and out, it is inexpensive, which may appeal to teams running high-volume, low-complexity tasks. However, without benchmark data, it cannot be recommended for client-facing or mission-critical applications. Teams should evaluate it against benchmarked alternatives before committing to production use.
Assessed June 6, 2026
Editorial notes
Hermes 2 Pro from NousResearch is a fine-tuned Llama-3 8B variant with no benchmark data, limiting its verifiable capability for business deployment.
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Performance Profile
How NousResearch: Hermes 2 Pro – Llama-3 8B compares
Its 8K-token context window is larger than 25% of the models we list. At $0.14 per million input tokens it is cheaper than 58% of comparable models.
About NousResearch: Hermes 2 Pro – Llama-3 8B
Hermes 2 Pro is an upgraded, retrained version of Nous Hermes 2, consisting of an updated and cleaned version of the OpenHermes 2.5 Dataset, as well as a newly introduced..
Architecture Detail
| Instruct Type | chatml |
How does NousResearch: Hermes 2 Pro – Llama-3 8B stack up?
Compare side-by-side with other legacy models.
Model Information
| OpenRouter ID |
nousresearch/hermes-2-pro-llama-3-8b
|
| Provider | nousresearch |
| Release Date | May 27, 2024 |
| Context Length | 8,192 tokens |
| Max Completion | 8,192 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.14 | $0.000140 |
| Output | $0.14 | $0.000140 |
External Resources
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Frequently asked questions about NousResearch: Hermes 2 Pro – Llama-3 8B
How much does NousResearch: Hermes 2 Pro – Llama-3 8B cost?
NousResearch: Hermes 2 Pro – Llama-3 8B costs $0.14 per million input tokens and $0.14 per million output tokens.
What is the context window of NousResearch: Hermes 2 Pro – Llama-3 8B?
NousResearch: Hermes 2 Pro – Llama-3 8B has a context window of 8,192 tokens (8K).
Who created NousResearch: Hermes 2 Pro – Llama-3 8B?
NousResearch: Hermes 2 Pro – Llama-3 8B is developed by NousResearch and was released on May 27, 2024.
Data sourced from OpenRouter API, Artificial Analysis and Hugging Face Open LLM Leaderboard. Scores are editorially curated by our team.
Last updated: June 19, 2026 8:38 pm