GPT-4 to Self-Hosted Llama 4 Migration Guide
Migrate from GPT-4o (now retired) or GPT-5.1 to self-hosted Llama 4 with near-zero code changes, but plan carefully for hardware, EU licensing, and realistic context window limits.
Migrations
Switching from ChatGPT to Claude
A practical guide to switching from ChatGPT Plus to Claude Pro in 2026, covering Opus 4.7's 1M context window, the new $100 ChatGPT Pro tier, voice mode on both platforms, and the June 15 agent billing split.
Switching from GitHub Copilot to Cursor
Updated for Cursor 3.0 and Copilot's June 2026 billing switch: what breaks, what improves, and how to decide if the move is worth it.
Migrating from OpenAI API to Google Gemini API
A practical guide to switching from OpenAI's chat completions to Google's Gemini API, covering the 3-line compatibility shortcut, key schema differences, and where the two APIs diverge.
Switching from LangChain to CrewAI
A practical guide to migrating from LangChain to CrewAI, covering concept mapping, code examples, tool compatibility, and common pitfalls.
Switching from Midjourney to FLUX
A practical guide to switching from Midjourney to FLUX, covering quality differences, local setup, API options, LoRA fine-tuning, and cost savings.
Switching from Claude Code to OpenAI Codex
A practical guide to switching from Claude Code to OpenAI Codex CLI, covering command mapping, sandbox differences, feature parity, and workflow adjustments.
Switching from AWS Bedrock to Azure OpenAI
A developer's guide to migrating from AWS Bedrock to Azure OpenAI Service, covering SDK changes, model mapping, pricing differences, and authentication gotchas.
Switching from Cursor to Windsurf
A practical guide to switching from Cursor to Windsurf IDE, covering settings migration, Cascade vs Composer differences, pricing savings, and workflow adjustments.
Migrating from LangChain to LlamaIndex
How to migrate your RAG pipeline from LangChain to LlamaIndex, with side-by-side code examples for document loading, indexing, querying, and agents.
Migrating from Pinecone to pgvector
How to move your vector search workload from Pinecone to PostgreSQL with pgvector, including schema mapping, data migration, and cost savings of up to 75%.
Migrating from OpenAI API to Anthropic API
A practical guide to switching from OpenAI's chat completions to Anthropic's Messages API, covering endpoint mapping, tool use differences, and pricing.
