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Hermes 4 405B: price, performance and context

Open Hermes 4 405B by Nousresearch costs $1.00 per 1M input and $3.00 per 1M output tokens, handles up to 131.1K tokens in one request (≈ 390 pages of text) and scores 7.5 points on the AgentKernel performance index, rank 182 of 212.

Privacy: zero data retention with one provider, not in the EU. Availability over the last 24 h: 100%.

Updated Oct 09, 2026, 17:39 UTC · nousresearch/hermes-4-405b

Open in the interactive comparison

Key facts

Licence
Open weights: free to download and self-host
Input / 1M tokens
$1.00
Output / 1M tokens
$3.00
Context window
131.1K tokens
Max. output
118K tokens
Performance index
7.5 points · rank 182 of 212
Coding index
n/a
Agentic index
n/a
Cost at your usage
$1.75 / month
Knowledge cutoff
Aug 2024
In the catalog since
Aug 26, 2025
Capabilities
Reasoning

What do you get for $10.00?

Rules of thumb from the cost calculator, base rates without caching or taxes.

TaskCost per taskFor $10.00
Chat repliesA question with a short history, a detailed answer$0.0025,600
Email draftsBullet points in, a finished email out$0.0016,900
Document summariesRead 10 pages, write a one-page summary$0.0052,100
Code reviewsReview and comment on 500 lines of code$0.0091,200
Book analysesAnalyse a 300-page book in one go$0.10694

Cheaper with similar performance

ModelLicencePerformanceYour cost / month
Ling 3.1 FlashinclusionAIProprietary41.1$0.00
Ling 3.0 Flash VLinclusionAIOpen24.6$0.036
Ling 3.0 FlashinclusionAIOpen20.1$0.037

Stronger models

ModelLicencePerformanceYour cost / month
GLM 4.5VZ.aiOpen7.6$1.05
Qwen3 30B A3BQwenOpen7.6$0.245
Sonar ProPerplexityProprietary7.6$6.75