Comparing OpenAI, Anthropic, Google, and open-source APIs — pricing, latency, and production patterns
OpenAI GPT-4o ($2.50/$10 per 1M tokens), Anthropic Claude 4 ($3/$15), Google Gemini 2.5 ($1.25/$5), DeepSeek V4 ($0.55/$2.19). Includes free tier limits, rate limits, and context window capacities.
Streaming responses, function calling, structured output (JSON mode), prompt caching, semantic routing, fallback chains, and multi-model orchestration. Code examples in Python and TypeScript.
Running Llama 4, Mistral Large, and DeepSeek on your own infrastructure. Cost comparison: API vs self-hosted at different request volumes. When to switch from API to dedicated inference.