Claude Haiku 4.5 and MiniMax M2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Haiku 4.5, from Anthropic, has a 200,000-token context window and is priced at $1/M tokens input, $5/M tokens output on OpenRouter.
MiniMax M2, from MiniMax, has a 204,800-token context window and is priced at $0.255/M tokens input, $1.02/M tokens output on OpenRouter.