OpenAI: GPT-5.1-Codex-Mini

How to Use OpenAI: GPT-5.1-Codex-Mini

With CoreAI, you can start chatting with OpenAI: GPT-5.1-Codex-Mini instantly — no separate subscription needed. CoreAI lets you chat with OpenAI: GPT-5.1-Codex-Mini alongside 300+ other AI models from OpenAI and other providers like OpenAI, Anthropic, Google, Meta, and more.

1. Download the CoreAI app for iOS, Android, or use the Web App
2. Select OpenAI: GPT-5.1-Codex-Mini from the model selector
3. Start chatting, comparing, or creating with AI

OpenAI: GPT-5.1-Codex-Mini at a Glance

Among the 392 chat models on CoreAI, OpenAI: GPT-5.1-Codex-Mini ranks #128 by context window — 400K tokens, roughly 300,000 words or 600 pages of text in a single conversation. On price, it is the #17 cheapest of 183 standard-tier models by input cost. It joined the catalog on 2025-11-13. It supports step-by-step reasoning (thinking mode) and accepts image input.

OpenAI: GPT-5.1-Codex-Mini Compared to Its Closest Alternatives

Every model in this table is available on CoreAI — open the web app and run the same prompt through OpenAI: GPT-5.1-Codex-Mini and OpenAI: GPT-5 Mini side by side to judge with your own eyes.

What OpenAI: GPT-5.1-Codex-Mini Actually Costs in Practice

A typical question (about 1,000 tokens in, 500 out) runs $0.00125 on OpenAI: GPT-5.1-Codex-Mini's raw per-token rates; a heavy session with a 50K-token document costs about $0.022. On CoreAI you don't juggle these numbers — one subscription covers OpenAI: GPT-5.1-Codex-Mini and 300+ other models under a plan usage limit, with no API keys. See plans.

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Frequently Asked Questions about OpenAI: GPT-5.1-Codex-Mini

What is OpenAI: GPT-5.1-Codex-Mini's context window?

OpenAI: GPT-5.1-Codex-Mini handles 400K tokens of context — roughly 300,000 words, or about 600 pages of text in one conversation.

How much does OpenAI: GPT-5.1-Codex-Mini cost?

OpenAI: GPT-5.1-Codex-Mini's underlying rates are $0.25 per 1M input tokens and $2 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.

Can OpenAI: GPT-5.1-Codex-Mini process images?

Yes — OpenAI: GPT-5.1-Codex-Mini accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.

Does OpenAI: GPT-5.1-Codex-Mini support reasoning or thinking mode?

Yes. OpenAI: GPT-5.1-Codex-Mini can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.

How can I use OpenAI: GPT-5.1-Codex-Mini without an API key?

Open the CoreAI web app or the iOS/Android app, pick OpenAI: GPT-5.1-Codex-Mini in the model selector, and chat — no API key, no per-token billing. One subscription covers OpenAI: GPT-5.1-Codex-Mini and 300+ other models.

What are the best alternatives to OpenAI: GPT-5.1-Codex-Mini?

The closest alternatives on CoreAI are OpenAI: GPT-5 Mini, 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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