OpenAI: GPT-4 Turbo Preview
Analysis Summary
GPT-4 Turbo Preview is an early 2024 OpenAI release that served as a preview of the GPT-4 Turbo family. It supports tool use and function calling with a 128K context window, which was a meaningful capability at launch. However, it carries no published benchmark data and has been superseded by multiple GPT-4o and GPT-5 family releases.
For business use, the 128K context window and tool use support retain some utility for long-document workflows and agentic tasks. Without benchmark data, though, reasoning and coding quality cannot be verified against current alternatives. At $10/$30 per million tokens, the cost is high for an unverified, legacy model.
Businesses on this endpoint should migrate to a current OpenAI model. GPT-4o or GPT-4.1 offer better-documented performance, broader capability, and more competitive pricing.
Assessed June 6, 2026
Editorial notes
GPT-4 Turbo Preview is a legacy OpenAI model with tool use, function calling, and a 128K context window, but no benchmark data and high pricing relative to current successors.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How OpenAI: GPT-4 Turbo Preview compares
Its 128K-token context window is larger than 43% of the models we list. At $10.00 per million input tokens it is cheaper than 4% of comparable models.
About OpenAI: GPT-4 Turbo Preview
The preview GPT-4 model with improved instruction following, JSON mode, reproducible outputs, parallel function calling, and more. Training data: up to Dec 2023. **Note:** heavily rate limited by OpenAI while..
Capabilities
How does OpenAI: GPT-4 Turbo Preview stack up?
Compare side-by-side with other legacy models.
Model Information
| OpenRouter ID |
openai/gpt-4-turbo-preview
|
| Provider | openai |
| Model Family | GPT-4 Turbo |
| Release Date | January 25, 2024 |
| Context Length | 128,000 tokens |
| Max Completion | 4,096 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $10.00 | $0.010000 |
| Output | $30.00 | $0.030000 |
Leaderboard Categories
External Resources
Frequently asked questions about OpenAI: GPT-4 Turbo Preview
How much does OpenAI: GPT-4 Turbo Preview cost?
OpenAI: GPT-4 Turbo Preview costs $10.00 per million input tokens and $30.00 per million output tokens.
What is the context window of OpenAI: GPT-4 Turbo Preview?
OpenAI: GPT-4 Turbo Preview has a context window of 128,000 tokens (128K).
What can OpenAI: GPT-4 Turbo Preview do?
OpenAI: GPT-4 Turbo Preview supports tool use and function calling.
Who created OpenAI: GPT-4 Turbo Preview?
OpenAI: GPT-4 Turbo Preview is developed by OpenAI and was released on January 25, 2024.
