Hermes 4 – Llama-3.1 405B (Non-reasoning)
Analysis Summary
Hermes 4 405B (Non-reasoning) is Nous Research's fine-tune of Meta's Llama 3.1 405B base, targeting general-purpose instruction following and content tasks. Despite the large parameter count, its intelligence index sits in the lower range of benchmarked models, and its agentic score is weak, limiting its usefulness for autonomous or multi-step workflows.
For businesses, it is best suited to straightforward content generation, summarisation, and light Q&A tasks where the 405B scale may provide some quality lift over smaller models. Coding capability is moderate (livecodebench 0.546), but without strong reasoning or agentic reliability it is not a first choice for software engineering pipelines. Instruction following (ifbench 0.35) is below average.
At $1/$3 per million tokens it is not cheap for its capability tier. Teams needing a large open-weight model for content tasks may find better value in more recent fine-tunes or base models at lower price points.
Assessed June 30, 2026
Editorial notes
Hermes 4 405B (Non-reasoning) from Nous Research offers broad general capability on a large parameter base, with moderate instruction following, but limited reasoning depth and low agentic performance keep it in the mid-tier.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Hermes 4 – Llama-3.1 405B (Non-reasoning) compares
Hermes 4 – Llama-3.1 405B (Non-reasoning) ranks #253 of 385 AI models we track for overall intelligence, #195 of 293 for agentic tasks. At $1.00 per million input tokens it is cheaper than 25% of comparable models.
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Hermes 4 – Llama-3.1 405B (Non-reasoning) stack up?
Compare side-by-side with other professional models.
Model Information
| Provider | Nous Research |
| Release Date | August 27, 2025 |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $1.00 | $0.001000 |
| Output | $3.00 | $0.003000 |
Leaderboard Categories
Frequently asked questions about Hermes 4 – Llama-3.1 405B (Non-reasoning)
How much does Hermes 4 – Llama-3.1 405B (Non-reasoning) cost?
Hermes 4 – Llama-3.1 405B (Non-reasoning) costs $1.00 per million input tokens and $3.00 per million output tokens.
Who created Hermes 4 – Llama-3.1 405B (Non-reasoning)?
Hermes 4 – Llama-3.1 405B (Non-reasoning) is developed by Nous Research and was released on August 27, 2025.
