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Flagship — best answers, highest costOpen Weights
Hermes 4 405B Pricing
Nous · nousresearch-hermes-4-405b
Input / 1M tokens
$1.00
Output / 1M tokens
$3.00
Context window
131,072 tokens
≈ 175 pages of text
Max output
—
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0024
1,000 requests / month$2.40/mo10,000 requests / month$24.00/mo100,000 requests / month$240.00/moEstimate your own workloadOpens the calculator with Hermes 4 405B preloaded — adjust volume and token counts there.
Price history
Only one price point recorded so far.
The staircase chart appears once a price change is detected.
What it excels at
Strong instruction following and multi-turn dialogue performance at 405B scale with competitive per-token pricing.
The business tradeoff
Open-weights release means output quality and latency vary by deployment; limited ecosystem tooling compared with closed providers.
Cheaper from Nous
Head-to-head
Vendor list rates, as of Jun 15, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.