GPT-4.5 Turbo

Best Value

OpenAI

Released: 2025-06-10

Type: Frontier Model

Context

256k

Max Out

16.4k

Cutoff

2025-04

Params

Unknown (MoE)

Evolution: What Changed?

Inference speed doubled compared to GPT-4o
Cost per token reduced by 50%
Improved JSON mode reliability for developers

Compared to gpt-4o

Evolution: What Changed?

Inference speed doubled compared to GPT-4o
Cost per token reduced by 50%
Improved JSON mode reliability for developers

compared to previous generation

The Breakdown

The GPT-4.5 Turbo represents a significant leap forward in OpenAI's lineup. Released in 2025-06-10, it targets developers and enterprise use cases with a specific focus on reasoning capabilities over raw conversational speed. While previous iterations in the Frontier Model category often struggled with complex multi-step instruction following, this model introduces a refined architecture that dramatically improves adherence to system prompts and reduces hallucination rates in technical domains. It competes directly with top-tier frontier models but carves out a distinct niche for workflows where precision and context retention matter more than creative flair. For businesses looking to integrate reliable AI agents, GPT-4.5 Turbo offers a compelling balance of performance and cost-efficiency.

Overall Score

9.7

/10

Pricing (per 1k tokens)

Input$0.005

Output$0.015

Currency: USD