Question 1

Is GPT-4o cheaper than o3?

Accepted Answer

Under an illustrative mix of 1M input and 200K output tokens, the stored listed rates make o3 approximately 20% lower. This directional estimate excludes discounts, fees, taxes, availability, latency, and quality; verify current provider terms.

Question 2

What are the input and output token rates for o3 and GPT-4o?

Accepted Answer

o3 is listed at $2.00 per 1M input tokens and $8.00 per 1M output tokens. GPT-4o is listed at $2.50 per 1M input tokens and $10.00 per 1M output tokens.

Question 3

How much can be saved by migrating between o3 and GPT-4o?

Accepted Answer

Depending on your exact prompt length and output generation volume, switching to o3 can reduce raw API token spend by approximately 20%. Use ModelPriceLab's cost diagnose tool to model your specific monthly workload.

Question 4

What should teams evaluate before switching from o3 to GPT-4o?

Accepted Answer

Before migrating production workloads, engineering teams should evaluate output quality, structured JSON compliance, prompt sensitivity, latency percentiles, rate limits, and fallback strategies.

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o3 vs GPT-4o

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