OpenAI: GPT-5.4
Analysis Summary
OpenAI's GPT-5.4 combines very strong measured reasoning and coding with a strong agentic result. It supports tools and function calling, accepts image and file inputs, and offers a 1.05M context window. That combination makes it suitable for demanding work that spans code, long documents, and structured tool workflows.
For agency use, it is a strong candidate for software engineering support, complex analysis, and client-facing tasks where answer quality matters. Its broad input and tool capabilities also make it practical to consolidate several steps in a workflow. The main constraint is cost: listed input and output rates are $2.50 and $15, so it is less suited to routine bulk generation than low-cost models. Use it for high-value work and route simpler traffic to a cheaper tier.
Assessed September 23, 2026
Editorial notes
GPT-5.4 pairs frontier reasoning and strong coding with a 1.05M context window, vision, file input, and function calling. Its premium pricing suits complex client work better than routine, high-volume traffic.
The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?
DFO Verdict
GPT-5.4 pairs frontier reasoning and strong coding with a 1.05M context window, vision, file input, and function calling. Its premium pricing suits complex client work better than routine, high-volume traffic.
Benchmarks
Artificial Analysis data refreshed Nov 9, 2026. Arena ratings from the Oct 28, 2026 text leaderboard, with style control.
Artificial Analysis no longer lists this model, so its indexes are converted from their older scale to stay comparable.
How OpenAI: GPT-5.4 compares
OpenAI: GPT-5.4 ranks #44 of 449 AI models we track for overall intelligence, #31 of 199 for coding, #28 of 181 for agentic tasks. Its 1.1M-token context window is larger than 99% of the models we list. At $2.50 per million input tokens it is cheaper than 11% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $2.50 | $0.002500 |
| Output | $15.00 | $0.015000 |
What would OpenAI: GPT-5.4 cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
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These numbers get smaller with the right architecture.
We route routine calls to cheap models and save OpenAI: GPT-5.4 for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout OpenAI: GPT-5.4
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for..
Frequently asked questions about OpenAI: GPT-5.4
How much does OpenAI: GPT-5.4 cost?
OpenAI: GPT-5.4 costs $2.50 per million input tokens and $15.00 per million output tokens.
What is the context window of OpenAI: GPT-5.4?
OpenAI: GPT-5.4 has a context window of 1,050,000 tokens (1.1M).
Is OpenAI: GPT-5.4 good for coding?
On our coding benchmark index, OpenAI: GPT-5.4 ranks #31 of 199 models, placing it in the top quartile of the field for code generation and debugging.
What can OpenAI: GPT-5.4 do?
OpenAI: GPT-5.4 supports image/vision input, tool use, and function calling.
Who created OpenAI: GPT-5.4?
OpenAI: GPT-5.4 is developed by OpenAI and was released on March 5, 2026.