GPT-5.4
OpenAI's frontier model for complex professional work with best intelligence at scale for agentic, coding, and professional workflows.
GPT-5.4 at a glance
Context window
1.1M tokens
Input price
$2.5
per 1M tokens
Output price
$15
per 1M tokens
Why use GPT-5.4
Strengths, benchmarks, and where GPT-5.4 fits in your team's workflow.
1. Best Intelligence at Scale
- OpenAI positions GPT-5.4 as its frontier model for agentic, coding, and professional workflows.
- Built for complex professional work where stronger reasoning and higher answer quality matter.
2. Configurable Reasoning + Multimodal Input
- Supports configurable reasoning effort from none to xhigh, letting teams balance speed and depth.
- Accepts both text and image inputs while producing text output.
3. Massive Context for Long-Running Work
- 1.05M token context window supports very large codebases, documents, and multi-step workflows.
- Allows up to 128 k output tokens for long-form answers and larger generations.
4. Updated Knowledge & Broad Tool Support
- Knowledge cut-off of Aug 31 2025 keeps it current for newer frameworks and business context.
- Supports tools like web search, file search, code interpreter, hosted shell, computer use, and MCP in the Responses API.
Power your team with GPT-5.4
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by GPT-5.4 - connected to your real data and ready for your whole team. No code, no deployment.
Build internal AI tools
Describe what you need and the Appaca agent builds it - lead scorers, report generators, email drafters - with GPT-5.4 as the engine. No code, no deployment.
Give GPT-5.4 your real data
Connect the tools your team already uses - Slack, Notion, Google Sheets, Airtable, and more - so GPT-5.4 works with real context, not generic answers.
Automate recurring tasks
Schedule GPT-5.4 to run on autopilot - daily digests, weekly summaries, or real-time triggers - all managed inside your Appaca workspace.
Describe it, and it's built
Tell the Appaca agent what your team needs and it builds a working app powered by GPT-5.4 - connected to the tools you already use.
Where teams use GPT-5.4
See how teams put GPT-5.4 to work inside Appaca - internal tools and AI agents that work around you.
Sales
Score leads, draft follow-ups, and summarise deals with GPT-5.4 doing the heavy lifting.
Explore Appaca for SalesMarketing
Draft, repurpose, and report on campaigns in your brand voice - powered by GPT-5.4.
Explore Appaca for MarketingOperations
Automate reporting, vendor tracking, and process docs with AI built around your workflow.
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See how GPT-5.4 stacks up against other text models - pricing, context windows, and strengths side by side.
Build internal AI tools with GPT-5.4
Describe the tool your team needs and get a working app powered by GPT-5.4 - with a built-in database, team access, and integrations. No code, no deployment.