Last refreshed 2026-06-15. Next refresh: weekly.
Why use Hermes-4-70B on OpenRouter?
OpenRouter offers Hermes-4-70B with pay-as-you-go pricing at $0.13/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Hermes-4-70B across 2 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: nousresearch/hermes-4-70bnousresearch/hermes-4-70bRequest example
nousresearch/hermes-4-70b.Gotchas
- Use provider model ID "nousresearch/hermes-4-70b", not the LLMReference slug "hermes-4-70b".
Compare Hermes-4-70B Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Nous Portal | $0.05 | $0.20 |
| OpenRouter | $0.13 | $0.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.13 |
| Output tokens | $0.40 |
Capabilities
About Hermes-4-70B
Hermes 4's 70B hosted variant on Nous Portal. The portal describes it as a hybrid-mode reasoning model that balances scale and size while staying fast and cost effective for complex reasoning tasks.
FAQ
What does Hermes-4-70B cost on OpenRouter?
On OpenRouter, Hermes-4-70B costs $0.13 per 1M input tokens and $0.4 per 1M output tokens.
What is the context window for Hermes-4-70B on OpenRouter?
Hermes-4-70B supports a 131k token context window on OpenRouter.
How does OpenRouter compare to other Hermes-4-70B providers?
Hermes-4-70B is available from 2 providers. The cheapest input pricing is $0.05/1M tokens from Nous Portal.
What API model ID do I use for Hermes-4-70B on OpenRouter?
Use the model ID nousresearch/hermes-4-70b when calling OpenRouter's API.
Who created Hermes-4-70B?
Hermes-4-70B was created by Nous Research as part of the Hermes 4 model family.
Is Hermes-4-70B open source?
Hermes-4-70B has open weights under Llama 3 Community according to the seed data, but that does not necessarily mean an OSI-approved open-source license.