CostLens AI
CostLens AI is a cost observability platform specifically designed for LLM API usage. It connects to major providers (OpenAI, Anthropic, Google Vertex AI) and provides granular breakdowns of spending per model, per function, per user, and per prompt. Launched mid-2025 and trending on ProductHunt in 2026 after introducing real-time budget alerts and optimization recommendations that suggest model swaps or prompt compression. It is essential for any team managing multiple AI integrations.
From $39/mo
Key Features
- ✓Real-time cost breakdown by model, token, and application
- ✓Budget alerts with Slack/email notifications
- ✓Prompt compression recommendations to reduce tokens
- ✓Model usage analytics to identify underused or overused endpoints
- ✓Multi-provider comparison and optimization suggestions
Pros
- +Easy to use
- +Good support
- +Regular updates
Cons
- -Learning curve
- -Pricing could be clearer