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OpenHermes 2.5 Mistral 7B vs GPT-5.1-Codex-Mini

A detailed comparison of pricing, benchmarks, and capabilities

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Key Takeaways

OpenHermes 2.5 Mistral 7B wins:

  • Cheaper input tokens
  • Cheaper output tokens

GPT-5.1-Codex-Mini wins:

  • Larger context window
  • Faster response time
  • Higher intelligence benchmark
  • Better at coding
  • Better at math
  • Supports vision
  • Has reasoning mode
  • Supports tool calls
Price Advantage
OpenHermes 2.5 Mistral 7B
Benchmark Advantage
GPT-5.1-Codex-Mini
Context Window
GPT-5.1-Codex-Mini
Speed
GPT-5.1-Codex-Mini

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureOpenHermes 2.5 Mistral 7BGPT-5.1-Codex-Mini
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyOpenHermes 2.5 Mistral 7BGPT-5.1-Codex-Mini
LicenseOpen SourceProprietary
AuthorNousresearchOpenAI
ReleasedUnknownNov 2025

OpenHermes 2.5 Mistral 7B Modalities

Input
Output

GPT-5.1-Codex-Mini Modalities

Input
imagetext
Output
text

Frequently Asked Questions

OpenHermes 2.5 Mistral 7B has cheaper input pricing at $0.17/M tokens. OpenHermes 2.5 Mistral 7B has cheaper output pricing at $0.17/M tokens.
OpenHermes 2.5 Mistral 7B has a 32,768 token context window, while GPT-5.1-Codex-Mini has a 400,000 token context window.
OpenHermes 2.5 Mistral 7B does not support vision. GPT-5.1-Codex-Mini supports vision.