🧠 OpenRouter

• ✅ Broad model coverage (300+), including closed and open-source LLMs
• 🕶️ Access to "stealth" and community models
• 💳 Unified API and centralized billing (platform credits)
• 🔁 Native routing and fallback features
• 📊 Basic per-model tracking
• 🧱 OpenAI-compatible API (plug-and-play)
• 💚 Official provider for Vercel AI SDK
• 🔓 Open-source (community backed)
• ⚠️ Limitation: Tracking is not as granular as Portkey or LangDB

🛡️ Portkey

• 🧰 Works as a Gateway and as an observability SDK (optional library)
• 🔍 Advanced, detailed tracking (logs, cost, fallback, etc.)
• 🔗 Multiple integrations (supports BYOK)
• 🤝 Can integrate with OpenRouter → You get OpenRouter’s models + Portkey’s tracking
• 🆓 Free plan: 10k logs/month, 3-day retention, 3 prompt templates, basic caching
• 💼 Pro plan: 100k logs/month, 30-day retention, unlimited templates, semantic cache, RBAC