O3 Pro
Neural Network
O3 Pro is an OpenAI reasoning model: O3 Pro API for tasks where accuracy and sequential analysis are critical.
Max answer length
(in tokens)
Context size
(in tokens)
Prompt cost
(per 1M tokens)
Answer cost
(per 1M tokens)
How it works O3 Pro?
O3 Pro belongs to OpenAI's o-series: these models are trained with reinforcement learning and build a chain of thought before answering, rather than providing the first solution that comes to mind. Unlike the base o3, O3 Pro uses more compute for reasoning, resulting in more stable answers for tasks requiring sequential steps. In BotHub, the model is accessible from Russia without a VPN or foreign card, and you pay only for tokens used, with no subscription, and the balance does not expire. With over 250 models in one window, you can easily run the same prompt through several to compare results. For products, there is a unified OpenAI-compatible API, allowing you to switch models without rewriting integrations. Chats are encrypted via AES-GCM, and companies can connect via contract with invoicing, EDI, and an admin panel with limits. Use O3 Pro when you need to untangle multi-step tasks, double-check calculations and long document logic, design solution architectures, or compile analytical reports that won't need manual editing.Frequently asked questions about O3 Pro
You can use generated results for commercial purposes. You own all rights to the content you create. The only restriction: make sure your prompt does not include copyrighted third-party material. You are responsible for respecting the rights to any input data.
O3 Pro is an OpenAI o-series model designed for complex tasks: code analysis and debugging, math and STEM, and document analytics. It accepts text, images, and files as input, supports function calling, and works in agentic scenarios. Accessible from Russia without a VPN or foreign card.
The output limit is up to 100,000 tokens per response. This is enough for a comprehensive technical analysis, a draft of documentation, or a large code module. The context window is 4,095 tokens, so it is better to provide long source materials in parts rather than all at once.
Yes, O3 Pro belongs to OpenAI's o-series, which first builds a solution path and then formulates an answer. Additionally, effort level settings are available: use economy mode for simple questions, and maximum for complex math and code architecture.
Yes, function calling and structured JSON output are supported. The model returns data according to a specified schema, which is convenient for integrations, parsing, and agents with tools. In BotHub, this works via a unified OpenAI-compatible API, so you can switch models without rewriting integrations.
Images and documents — yes: send a screenshot, diagram, PDF, or table and get a text analysis. Audio and video input is not supported, so for such files, it is better to choose a specialized model from the BotHub catalog in the same window.
We do not have data on prompt and output languages, so we cannot claim accuracy in Russian. It is more practical to test it with your own task: in BotHub, you pay per token, and they do not expire, so a short test is inexpensive.