ChatGate (formerly ChatGPT AI) vs Retune

ChatGate at chatgpt.ai is a third-party AI gateway that routes chat, image, and video requests across ChatGPT, Gemini, Claude, and other major models from one web interface. You pick a model manually or leave routing on Auto, then generate without juggling separate provider accounts.

Unlike signing up directly with OpenAI or Google, ChatGate sells consolidated access through tiered subscriptions and adds a Discover feed that ranks newly launched AI apps by category. The chatgpt.ai domain redirects to chatgate.ai, so the product brands as ChatGate even though the listing URL predates the rename.

Builders, marketers, and researchers who want one bill for multiple frontier models fit here, especially if they also browse the Discover leaderboard for fresh tools. It is not the official OpenAI ChatGPT product at chat.openai.com.

Retune lets you build custom AI chatbots without writing code, train them on crawled website pages or uploaded files, and embed a branded chat widget on your site. You can spin up bots for customer support, sales qualification, or internal knowledge lookup, then publish them when you move beyond personal testing. It covers bot building, data training, deployment, and widget styling in one workflow rather than stitching together separate tools.

Where Retune stands out from generic chatbot builders is how it packages training and publishing limits across clearly separated tiers. Personal bots can run with unlimited messages on the Launch plan, but publishing to the web caps at 5 bots on Grow and scales up to unlimited on Max with whitelabeling. That tiered split matters if you are comparing it to tools that charge per message or per seat instead of per published bot.

Retune fits agencies, SaaS teams, and small businesses that want branded AI assistants trained on proprietary docs or crawled site pages. The homepage now opens with a short growth diagnostic that routes visitors toward the bottleneck they care about, whether that is booking calls, closing sales, or reducing churn, before they sign in to build bots.