Documentation Index
Fetch the complete documentation index at: https://docs.ai-stats.phaseo.app/llms.txt
Use this file to discover all available pages before exploring further.
Migration Guides
AI Stats migration guides cover two different upgrade problems:- moving from one platform or gateway to AI Stats
- moving from an older model release to a newer model on the same platform
1. Model migrations
Use model migrations when the integration stays broadly the same but the model changes underneath it. These guides focus on:- request parameter changes
- prompt and reasoning behavior shifts
- structured output and tool-calling differences
- rollout, fallback, and rollback strategy
- Anthropic: Claude Opus 4.6 to 4.7
- Anthropic: Claude Opus 4.5 to 4.6
- Anthropic: Claude Sonnet 4.5 to 4.6
- OpenAI: Migrating to GPT-5.4
- Google: Migrating to Gemini 3 and 3.1
- Google: Nano Banana 1 to Nano Banana 2
- xAI: Grok 4.20
2. Platform migrations
Use platform migrations when you are changing SDKs, providers, or gateways and need to map your current integration onto AI Stats. Current platform migration guides:- OpenAI SDK Migration
- Anthropic SDK Migration
- Migration from OpenRouter
- Vercel AI Gateway Migration
- LLMGateway Migration
- LiteLLM Migration
- Cloudflare AI Gateway Migration
- Helicone AI Gateway Migration
How to use these guides
- Identify whether you are changing the platform, the model, or both.
- Start with the guide that matches the riskiest part of the migration.
- Update request shape before comparing output quality.
- Run production-like evals before shifting live traffic.