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  1. Home
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  3. Compare

Hermes 4 70B vs Codex Mini

Compare Hermes 4 70B from Nous Research and Codex Mini from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Favicon for nousresearch
Hermes 4 70B
Favicon for openai
Codex Mini
Favicon for nousresearch
Hermes 4 70B
Favicon for openai
Codex Mini

Overview

Hermes 4 70B
Author
Nous Research
Codex Mini
Author
OpenAI
Hermes 4 70B
Context length
131Ktokens
Codex Mini
Context length
200Ktokens
Hermes 4 70B
Reasoning
Codex Mini
Reasoning
Hermes 4 70B
Input modalities
Codex Mini
Input modalities
Hermes 4 70B
Output modalities
Codex Mini
Output modalities

Hermes 4 70B vs Codex Mini: side-by-side summary

Hermes 4 70B and Codex Mini are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Hermes 4 70B, from Nous Research, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.

Codex Mini, from OpenAI, has a 200,000-token context window and is priced by the provider serving it on OpenRouter.

Context window
  • Hermes 4 70B: 131,072 tokens
  • Codex Mini: 200,000 tokens
Price
  • Hermes 4 70B: Pricing varies by provider
  • Codex Mini: Pricing varies by provider
Provided by
  • Hermes 4 70B: Nous Research
  • Codex Mini: OpenAI
  • Hermes 4 70B model details, providers and pricing
  • Codex Mini model details, providers and pricing

Hermes 4 70B vs Codex Mini at a glance

Hermes 4 70B vs Codex Mini comparison
AttributeHermes 4 70BCodex Mini
Input pricePricing varies by providerPricing varies by provider
Output pricePricing varies by providerPricing varies by provider
Context window131,072 tokens200,000 tokens
Intelligence Index7.9Not available
Coding IndexNot availableNot available
Agentic IndexNot availableNot available
Latency (p50)Not availableNot available
Throughput (p50)Not availableNot available

Benchmark data updated Oct 5, 2026

Frequently asked questions

Which has the longer context window, Hermes 4 70B or Codex Mini?

Codex Mini has the longer context window at 200,000 tokens, compared with 131,072 tokens for Hermes 4 70B.