100% Structured Outputs
The gpt 4o api introduces Strict Mode, ensuring JSON responses match your schema with perfect accuracy for reliable data pipelines.
curl --request POST "https://gptproto.com/v1/chat/completions" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"model": "gpt-4o-2024-08-06",
"messages": [
{
"role": "user",
"content": "Hello"
}
]
}'Chat, coding agents & document work. Priced per 1M tokens — input, cached input and output are billed separately. GPTProto is 30% below official rates.
OpenAI · ≈ 148M tokens/mo (48M cached)
OpenRouter costs include its ~5.5% credit purchase fee. GPTProto applies a per-model discount (10–30% off) and your bonus credits are also spent at discounted rates — savings compound. Estimates assume a 60% cache hit rate.
The gpt 4o api offers industry-leading capabilities in structured data, speed, and multimodal reasoning.
The gpt 4o api introduces Strict Mode, ensuring JSON responses match your schema with perfect accuracy for reliable data pipelines.
Experience significantly reduced latency. This gpt model is twice as fast as Turbo, making it perfect for real-time agent responses.
Process large datasets and long documents easily. The gpt 4o api maintains high reasoning quality across a massive token window.
Save up to 50% on input costs. The gpt 4o api is more efficient than previous models, offering flagship power at a lower price point.
Get expert answers on using the gpt 4o api, including structured output reliability, context windows, and pricing advantages.
Guides, comparisons, and updates related to this model.
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