OpenAI Codex 0.161.0 makes GPT-6.1 Sol the default model
OpenAI released Codex 0.161.0, which makes GPT-6.1 Sol the default model in the bundled and Amazon Bedrock catalogs. The release adds Amazon Bedrock multi-agent V2 and Ultra reasoning support, MCP server login from an active terminal session, voice device and input-channel selection, and opt-in Daybreak controls gated behind the cli_daybreak flag.
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