Listed as one of the three frontier orchestrator models selectable in Perplexity Computer.
OpenAI frontier language model used for coding, reasoning and agentic tasks, available via ChatGPT and the API.
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GPT-5.4 at a glance
- What is GPT-5.4?
- GPT-5.4 is a model from OpenAI. OpenAI frontier language model used for coding, reasoning and agentic tasks, available via ChatGPT and the API.
- Who makes GPT-5.4?
- GPT-5.4 is made by OpenAI.
- Does GPT-5.4 work in the EU?
- Available in the EU. OpenAI publishes Europe Terms of Use for EEA residents via OpenAI Ireland Ltd, offers a GDPR-aligned DPA, and supports data residency for ChatGPT and API on business products. No model-specific EU restriction for GPT-5.4 was found. Last verified 14 Nov 2026.
- How much does GPT-5.4 cost?
- API pricing. Accessed through ChatGPT plans and per-token OpenAI API pricing; specific GPT-5.4 prices not provided in the source material. Licence: Proprietary.
- Where was GPT-5.4 shown?
- In 2 creator videos by Matthew Berman. Most recently by Matthew Berman on 6 Jun 2026, at 5:28 in “Perplexity Just Built an AI That Does Everything”.
Sources: the vendor's own pages (linked above) and creator videos at the linked timestamps. EU status is information, not legal advice; see how we check.
GPT-5.4 is a proprietary large language model from OpenAI, part of the GPT-5 series. It is positioned as a general-purpose frontier model for reasoning, coding and agentic workflows. Detailed specifications such as context length and exact benchmark scores were not present in the provided material.
According to YouTube creator coverage, GPT-5.4 ranks second on the DeepSWE software-engineering leaderboard, behind GPT-5.5 and ahead of Claude Opus 4.7. It is also one of three frontier orchestrator models selectable in Perplexity Computer.
It is accessed through OpenAI's products (ChatGPT) and the OpenAI API, with model documentation on the OpenAI platform docs. Weights are not released. Newer models in the series (such as GPT-5.5) have since appeared, so GPT-5.4 is no longer the top OpenAI model.
- Proprietary OpenAI GPT-5 series model
- Strong results on software-engineering benchmarks (2nd on DeepSWE per creator reports)
- Usable as an orchestrator model in third-party agent tools such as Perplexity Computer
- Available via ChatGPT and the OpenAI API
- Business offerings include data residency options for API and ChatGPT
As seen on YouTube
Watch the moment: the exact second top creators show it. Videos load only when you press play, via youtube-nocookie.com.
Ranks second on the DeepSWE leaderboard, behind GPT-5.5 and ahead of Opus 4.7.
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