Yesterday a new API aggregator quietly showed up in r/PromptEngineering looking for builders to test it. The platform is called CometAPI and what it’s doing is pretty straightforward, but the execution detail is the part worth paying attention to.
What shipped: CometAPI is a unified API layer that plugs into models from OpenAI, Anthropic, Gemini, DeepSeek, Grok, Flux, Kling, Suno, and a bunch more. One account. One API key. One integration.
The twist: It’s OpenAI-compatible. That means if you already have code calling GPT-4o, you can point it at Claude or Gemini without rewriting your integration. Just change the base URL and model name. That’s it.
For developers doing model comparisons or A/B testing different LLMs in production, that’s not a small thing.
Here’s how to get started:
- 🔗 Sign up at CometAPI and grab your API key
- 🔄 Swap your existing OpenAI base URL to CometAPI’s endpoint
- 🧪 Test models across providers using the same code, just different model names
- 📊 Compare outputs, latency, and cost across OpenAI, Anthropic, DeepSeek, and Grok in one place
Pro tip: They’re handing out free credits right now specifically to creators and developers who want to benchmark models. You don’t need a big audience, just genuine interest in testing. If you write about AI tools or build agents, reach out to them on Reddit before this window closes.
If you’re tired of juggling four different API dashboards and billing accounts every time a new model drops, this is worth checking out 🚀
AI creators & developers — we’d love your feedback on CometAPI
by u/MembershipEmergency7 in PromptEngineering