GPT-5.1-Codex vs GLM 4.6V: side-by-side summary

GPT-5.1-Codex and GLM 4.6V are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

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

GLM 4.6V, from Z.ai, has a 131,072-token context window and is priced at $0.30/M tokens input, $0.90/M tokens output on OpenRouter.

Context window

• GPT-5.1-Codex: 400,000 tokens
• GLM 4.6V: 131,072 tokens

Price

• GPT-5.1-Codex: $1.25/M tokens input, $10/M tokens output
• GLM 4.6V: $0.30/M tokens input, $0.90/M tokens output

Provided by

• GPT-5.1-Codex: OpenAI
• GLM 4.6V: Z.ai

• GPT-5.1-Codex model details, providers and pricing
• GLM 4.6V model details, providers and pricing