GPT-5.1-Codex-Mini vs paraphrase-MiniLM-L6-v2: side-by-side summary

GPT-5.1-Codex-Mini and paraphrase-MiniLM-L6-v2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

GPT-5.1-Codex-Mini, from OpenAI, has a 400,000-token context window and is priced at $0.25/M tokens input, $2/M tokens output on OpenRouter.

paraphrase-MiniLM-L6-v2, from sentence-transformers, has a 512-token context window and is priced at $0.005/M tokens on OpenRouter.

Context window

• GPT-5.1-Codex-Mini: 400,000 tokens
• paraphrase-MiniLM-L6-v2: 512 tokens

Price

• GPT-5.1-Codex-Mini: $0.25/M tokens input, $2/M tokens output
• paraphrase-MiniLM-L6-v2: $0.005/M tokens

Provided by

• GPT-5.1-Codex-Mini: OpenAI
• paraphrase-MiniLM-L6-v2: sentence-transformers

• GPT-5.1-Codex-Mini model details, providers and pricing
• paraphrase-MiniLM-L6-v2 model details, providers and pricing