All corrections
Substack March 24, 2026 at 04:13 AM

www.interconnects.ai/p/gpt-45-not-a-frontier-model

1 correction found

1
Claim
GPT-4o launched in May 2024 at $2.5 / 1M input and $10 / 1M output.
Correction

Those were not GPT-4o's launch prices. OpenAI's May 13, 2024 launch announcement priced GPT-4o at $5 per million input tokens and $15 per million output tokens.

Full reasoning

OpenAI's own announcement on May 13, 2024 says GPT-4o was introduced at $5 per million input tokens and $15 per million output tokens, and described that as 50% cheaper than GPT-4 Turbo. That directly contradicts the article's statement that GPT-4o launched at $2.5 / 1M input and $10 / 1M output.

The likely source of confusion is that OpenAI's docs now list GPT-4o at $2.50 input / $10.00 output, but that is the later/current pricing shown on the model page, not the original launch pricing from May 2024. So the sentence is wrong specifically on the word "launched".

2 sources
Model: OPENAI_GPT_5 Prompt: v1.16.0