Nous Research Models API Cost Calculator & Comparison

Every Nous Research model, side by side — current API rates, context window, benchmarks, and a live calculator that ranks them at your exact workload. 6 active models, 6 with public pricing. Prices refreshed daily.

Models tracked

6

Active

6

With public pricing

6

Cheapest input

$0.00/1M

Calculate your Nous Research API cost at your workload.

Set your workload — every priced model ranks in real time.

Adjust the workload

Every model below updates in real time.

1,00010,00050,000250,0001M10M

Ranked by your monthly bill

No models with public pricing available to compare right now.

Pricing at a glance

Blended $/1M tokens across the lineup.

Blended price uses a 3-to-1 input/output ratio. Green bar = cheapest.

Quick picks

Best Nous Research model for your use case.

As of April 2026, Nous Research offers 6 active models via API, ranging from $0/1M to $1.00/1M input tokens. The most context-rich model handles up to 131K tokens. Models support deep reasoning, tool use. All prices are USD per 1 million tokens.

Lowest cost

Hermes 3 405B Instruct

$0/1M input

Largest context

Hermes 4 405B

131K tokens

Deep reasoning

Hermes 4 70B

Reasoning mode

Tool use / agents

Hermes 3 405B Instruct

Function calling

Quality vs price

Nous Research benchmarks at a glance.

Each point is one model — X is blended $/1M tokens, Y is the average of available quality benchmarks. Larger bubbles mean larger context windows.

Per-model benchmark scores

ModelAvgScores
Hermes 3 70B Instruct57.3
IFEval76.6BBH53.8MMLU Pro41.4
Hermes 2 Pro - Llama-3 8B35.7
IFEval53.6BBH30.7MMLU Pro22.8
Hermes 4 70B13.0
AA Intelligence Index13

Every model

Every Nous Research model — pricing, context & capabilities.

ModelContextInput /1MOutput /1M
Hermes 4 405B131K$1.00$3.00
Hermes 4 70B131K$0.13$0.4
Hermes 3 405B Instruct131K$1.00$1.00
Hermes 3 405B Instruct131K$0.0$0.0
Hermes 3 70B Instruct131K$0.3$0.3
Hermes 2 Pro - Llama-3 8B8K$0.14$0.14

FAQ

Domande frequenti

Pricing patterns, best-known use cases, and how this provider stacks up.

Get instant answers from our AI agent

Nous Research API pricing ranges from $0 to $1.00 per 1M input tokens. Output tokens cost more than input on every model. Prices are per 1 million tokens (1M ≈ 750,000 words). Use the calculator above to estimate your monthly spend at your actual workload.
Hermes 3 405B Instruct is the lowest-priced Nous Research model with public pricing at $0/1M input tokens. It suits high-volume tasks where cost matters most — classification, extraction, summarization, and similar workloads that don't need frontier reasoning.
Hermes 4 405B is Nous Research's highest-tier model at $1.00/1M input. It delivers the most sophisticated reasoning, instruction-following, and nuance. For workloads that don't require frontier performance, a mid-tier model typically cuts inference costs substantially.
Hermes 4 405B, Hermes 4 70B support deep reasoning mode, which improves performance on multi-step coding, debugging, and code review. For simpler autocomplete or snippet generation, a faster, cheaper model often delivers acceptable quality at a fraction of the cost.
Hermes 4 405B, Hermes 4 70B, Hermes 3 405B Instruct and 3 more support function calling (tool use), required for agentic workflows. Agents need a model that reliably follows structured output schemas — test with your specific tool definitions before committing to production volumes.
Yes — Nous Research supports prompt caching (discounts for repeated context) and batch processing (accept a delay, cut costs ~50%). These rates appear in the table above under "Cached /1M" and "Batch /1M." Caching pays off quickly if your prompts share a long system prompt or document prefix across many calls.
Nous Research has historically adjusted prices when launching new model generations, often cutting rates to stay competitive. Buzzi.ai snapshots pricing daily — you can subscribe to price-drop alerts on any Nous Research model using the "Alert me" button on its detail page.
Use the main comparison wizard to run the same calculator across Nous Research, Anthropic, Google, Meta, Mistral, and 20+ other providers. Set your exact workload and get a ranked cost chart in under a minute.
Hermes 4 405B, Hermes 4 70B offer an extended thinking or reasoning mode. The model spends extra compute "thinking" before answering — slower and more expensive, but meaningfully better on complex, multi-step problems. Standard mode is faster and cheaper for routine tasks.

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