GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
With CoreAI, you can start chatting with OpenAI: GPT-5 Codex (batch) instantly — no separate subscription needed. CoreAI lets you chat with OpenAI: GPT-5 Codex (batch) alongside 300+ other AI models from OpenAI and other providers like OpenAI, Anthropic, Google, Meta, and more.
Among the 386 chat models on CoreAI, OpenAI: GPT-5 Codex (batch) ranks #126 by context window — 400K tokens, roughly 300,000 words or 600 pages of text in a single conversation. On price, it is the #84 cheapest of 180 standard-tier models by input cost. It joined the catalog on 2025-09-23. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through OpenAI: GPT-5 Codex (batch) and OpenAI: GPT-5.1 (batch) side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00313 on OpenAI: GPT-5 Codex (batch)'s raw per-token rates; a heavy session with a 50K-token document costs about $0.056. On CoreAI you don't juggle these numbers — one subscription covers OpenAI: GPT-5 Codex (batch) and 300+ other models under a plan usage limit, with no API keys. See plans.
OpenAI: GPT-5 Codex (batch) handles 400K tokens of context — roughly 300,000 words, or about 600 pages of text in one conversation.
OpenAI: GPT-5 Codex (batch)'s underlying rates are $0.625 per 1M input tokens and $5 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — OpenAI: GPT-5 Codex (batch) accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. OpenAI: GPT-5 Codex (batch) can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick OpenAI: GPT-5 Codex (batch) in the model selector, and chat — no API key, no per-token billing. One subscription covers OpenAI: GPT-5 Codex (batch) and 300+ other models.
The closest alternatives on CoreAI are OpenAI: GPT-5.1 (batch), OpenAI GPT Mini Latest, inclusionAI: Ling-2.6-flash — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
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