Multi-Model Testing
Run your prompt against 300+ models and compare results before committing to one.
Promptmark connects to 300+ models from OpenAI, Anthropic, Google, Meta, Mistral, and dozens more. Pick a prompt, pick a model, and run it. Responses stream in real time.
Every test records the model used, token count, latency, and cost. Bring your own API key — Promptmark never handles your AI spend.
What you can do
- 300+ models from OpenAI, Anthropic, Google, Meta, Mistral, and more
- Streaming responses with token count, latency, and cost tracking per test
- BYOK — your API key, your billing
- Run the same prompt against multiple models to compare quality, speed, and cost before committing
- Test results are stored alongside the prompt — build a history of what works and what doesn't
- Feedback tools let you rate and annotate results for future reference
Try it free
No credit card required