Hermes 3 405B Instruct is 15.0× cheaper per million tokens (blended). Claude Opus 5 has the larger context window (1,000,000 vs 131,072 tokens, 7.6×). Hermes 3 405B Instruct is open-weights; the other is not.

Claude Opus 5 vs Hermes 3 405B Instruct

Live catalog fields. Best-in-row is highlighted.

Claude Opus 5

Anthropic · anthropic__claude-opus-5

Hermes 3 405B Instructopen

Nous Research · nousresearch__hermes-3-llama-3.1-405b

Identity

Fieldanthropic__claude-opus-5nousresearch__hermes-3-llama-3.1-405b
ProviderAnthropicNous Research
Sluganthropic__claude-opus-5nousresearch__hermes-3-llama-3.1-405b
Statuslivelive
Open weightsNoYes
License
HuggingFaceNousResearch/Hermes-3-Llama-3.1-405B

Quality

Fieldanthropic__claude-opus-5nousresearch__hermes-3-llama-3.1-405b
Quality index (0–100)93.4

Cost

Fieldanthropic__claude-opus-5nousresearch__hermes-3-llama-3.1-405b
Input $ / 1M tokens$5.00$1.00
Cached input $ / 1M$0.50
Output $ / 1M tokens$25.00$1.00

Context

Fieldanthropic__claude-opus-5nousresearch__hermes-3-llama-3.1-405b
Max context tokens1,000,000131,072
Max output tokens128,00016,384

Modalities

Fieldanthropic__claude-opus-5nousresearch__hermes-3-llama-3.1-405b
Inputtext, image, filetext
Outputtexttext