GPT-5.1-Codex-Max vs Text Embedding 3 Small: side-by-side summary

GPT-5.1-Codex-Max and Text Embedding 3 Small are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

GPT-5.1-Codex-Max, from OpenAI, has a 400,000-token context window and is priced at $1.25/M tokens input, $10/M tokens output on OpenRouter.

Text Embedding 3 Small, from OpenAI, has a 8,192-token context window and is priced at $0.02/M tokens on OpenRouter.

Context window

• GPT-5.1-Codex-Max: 400,000 tokens
• Text Embedding 3 Small: 8,192 tokens

Price

• GPT-5.1-Codex-Max: $1.25/M tokens input, $10/M tokens output
• Text Embedding 3 Small: $0.02/M tokens

Provided by

• GPT-5.1-Codex-Max: OpenAI
• Text Embedding 3 Small: OpenAI

• GPT-5.1-Codex-Max model details, providers and pricing
• Text Embedding 3 Small model details, providers and pricing