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OpenAI GPT-5 and GPT-5 Mini now available on Chat-O

We’re excited to announce that OpenAI’s newest models are now available on Chat-O. You can use GPT-5 Mini in the Balanced tier and GPT-5 in the Power tier, giving you a fast, reliable default for everyday work and a top-tier option for your most demanding tasks.

🚀 What’s new in GPT-5 vs. GPT-4/4.5

Without getting into marketing hype, here’s what you can expect compared to GPT‑4‑class models:

  • Stronger step‑by‑step reasoning for planning, multi-step instructions, and complex prompts
  • Better instruction following and higher consistency on tricky edge cases
  • Improved code generation and refactoring across common stacks
  • More concise, faster responses without giving up quality
  • More robust multilingual performance for reading and writing

Actual results vary by task, but in practice you’ll see fewer “gotchas,” stronger tool-use reliability, and better overall throughput for production work.

⚡ Balanced tier: GPT‑5 Mini

Available as our Balanced default, GPT‑5 Mini is tuned for speed, cost, and high-quality everyday output.

  • Great for chat, drafting, brainstorming, docs, and lightweight coding
  • Lower latency with strong accuracy for most day‑to‑day work
  • Excellent value when you need lots of iterations quickly

💪 Power tier: GPT‑5

When the work is complex or high stakes, the Power tier gives you GPT‑5 for the best possible quality.

  • Best for difficult reasoning, debugging, complex analysis, and long-form content
  • Higher reliability on multi‑constraint prompts
  • Ideal when quality matters more than speed or cost

🔎 Model identifiers (for the curious)

  • Balanced: openai/gpt-5-mini
  • Power: openai/gpt-5

These are enabled out of the box in Chat‑O; no BYOK required. If you prefer BYOK for other OpenAI models, that remains available.

✅ How to try them

  1. Create an account or log in.
  2. Open a chat and pick a tier: choose Balanced for GPT‑5 Mini or Power for GPT‑5.
  3. If you need higher limits, check the pricing page or manage your plan from your account.

👉 Get started — new users receive 1,000 free credits.

FAQs

  • Which model should I choose? Use Balanced (GPT‑5 Mini) for everyday tasks and rapid iteration. Choose Power (GPT‑5) for complex reasoning, long-form writing, and production-grade work.
  • Is this BYOK-only? No. Both models are available to all Chat‑O users without BYOK. BYOK remains supported for other OpenAI models if you prefer.
  • Does this include image generation or web browsing? This announcement is about text chat. Image generation and web search are available through other features and models in Chat‑O.
  • How does GPT‑5 compare to GPT‑4/4.5? Expect stronger reasoning, better instruction following, and faster, more consistent responses. The exact improvement depends on your task and prompt.

Stay tuned for more model updates—we ship fast.