OpenAI's high-capability workhorse model with a 128K context window and reliable tool use.
GPT-4 Turbo was OpenAI's most capable general-purpose model through 2024. With a 128K token context window, vision support, and reliable function calling, it became the backbone of thousands of AI products and agents.
Who it's for: Teams and developers who need a capable, well-documented model with long context and stable API behavior — especially for agentic workflows and RAG pipelines.
Ingest entire codebases, books, or CSVs in a single prompt without chunking.
Connect GPT-4 Turbo to APIs, databases, and your own functions reliably.
Upload images, charts, and screenshots and get accurate analysis back.
Force valid JSON for pipelines, agents, and app integrations.
GPT-4 Turbo is still a rock-solid choice in 2026 for production workloads that need long context and dependable tool use. For most new projects, GPT-4o or o1 will be faster and cheaper — but Turbo remains the safe default when you need maximum compatibility.