GPT-4 Turbo extended the original GPT-4 with a 128K context window, vision support, and lower pricing. It was the recommended high-capability option through most of 2024, but has since been superseded by GPT-4o which matches its intelligence benchmarks at lower cost and higher speed.
Migration
For new projects, use GPT-4o instead. GPT-4o matches GPT-4 Turbo on most tasks, runs 2× faster, and costs significantly less per token.