GPT-5.1-Codex-Max vs gpt-oss-safeguard-20b: side-by-side summary

GPT-5.1-Codex-Max and gpt-oss-safeguard-20b 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.

gpt-oss-safeguard-20b, from OpenAI, has a 131,072-token context window and is priced at $0.075/M tokens input, $0.30/M tokens output on OpenRouter.

Context window

• GPT-5.1-Codex-Max: 400,000 tokens
• gpt-oss-safeguard-20b: 131,072 tokens

Price

• GPT-5.1-Codex-Max: $1.25/M tokens input, $10/M tokens output
• gpt-oss-safeguard-20b: $0.075/M tokens input, $0.30/M tokens output

Provided by

• GPT-5.1-Codex-Max: OpenAI
• gpt-oss-safeguard-20b: OpenAI

• GPT-5.1-Codex-Max model details, providers and pricing
• gpt-oss-safeguard-20b model details, providers and pricing