Hands-on tests of OpenAI's tools: ChatGPT, GPT Image and the OpenAI API. Each guide shows what we ran, what came back and what it cost, so you know what to expect before you pay.
5 guides
ChatGPT
We made 10 copies of one text-heavy banner with GPT Image 2.6 on Higgsfield's Plus plan and read every charge. 4K cost 1.25 credits for 11.6 times the pixels of the 0.5-credit default, and high quality cost six times low for the same text.
ChatGPT
We sent the same text-heavy banner prompt to both GPT Image 2.6 models over the API. Both spelled every line right, even in Vietnamese, at $0.034 an image; Flare returned in about 9 seconds, Sunburst in 21, and Sunburst added text we never asked for.
ChatGPT
OpenAI now gives ChatGPT Pro and Business up to $500 a month in API credits, the same shape as Claude Max's. We ran one messy sales sheet on seven models both programs pay for: $200 buys about 32,700 GPT-6.1 Terra runs or 7,000 Claude Opus 5.5 runs.
ChatGPT
We gave GPT-6 Astra, Claude Fable 5.1, GPT-6.1 Terra and Claude Opus 5.5 a 15,000-word contract with four amendments and ten trap questions. All four got every trap right in every run; cost per read ranged from $0.02 (Terra) to $0.38 (Fable 5.1).
ChatGPT
We gave GPT-6.1 Terra, GPT-6 Astra and Claude Fable 5.1 the same 40-row sales sheet with six planted problems. Terra on high effort scored 10/10 like Astra at a tenth of the cost; on its default setting, one ambiguous cell moved a total by $10,800 between runs.
