Hermes 4 – Llama-3.1 405B (Reasoning)

Hermes 4 – Llama-3.1 405B (Reasoning)

Nous Research · Released Aug 27, 2025 Efficient
Intelligence #202 / 557
41.1 Our Score
Speed #237 / 259
34.2 tokens / sec
Input #421 / 560
$1.00 per 1M tokens
Output #417 / 560
$3.00 per 1M tokens
Context
Not reported

Analysis Summary

Hermes 4 – Llama-3.1 405B (Reasoning) sits in the Efficient tier on our leaderboard, ranked #202 of 557 published models on overall intelligence. At $1.00 input and $3.00 output per 1M tokens, it is among the most expensive on the market.

Editorial notes

Hermes 4 Llama-3.1 405B Reasoning adds strong math and livecodebench performance over its non-reasoning sibling, but the intelligence index remains low and pricing is relatively high at $1/1M input.

Assessed May 14, 2026

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence4.1Technical2.9Value6Content3.5
Intelligence 4.1/10
Technical 2.9/10
Content 3.5/10
Value 6/10

Performance Indices

Source: Artificial Analysis

18.6 Intelligence Index
16 Coding Index
16.8 Agentic Index
69.7 Math Index

Benchmark Scores

Intelligence

GPQA Diamond 72.7% Graduate-level scientific reasoning
HLE 10.3% Humanity's Last Exam
MMLU Pro 82.9% Multi-task language understanding
AIME 2025 69.7% Competition mathematics (2025)
SciCode 25.2% Scientific computing

Technical

LiveCodeBench 68.6% Live coding evaluation
TerminalBench Hard 11.4% Agentic terminal tasks
τ²-Bench 22.2% Conversational agent benchmark

Content

IFBench 32.7% Instruction following
LCR 20.7% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does Hermes 4 – Llama-3.1 405B (Reasoning) stack up?

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Model Information

ProviderNous 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

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