GPT-5.5
OpenAI's smartest and most capable model yet for agentic coding, knowledge work, and computer use, delivering a new class of intelligence at GPT-5.4 latency.
GPT-5.5 at a glance
Context window
1M tokens
Input price
$5
per 1M tokens
Output price
$30
per 1M tokens
Why use GPT-5.5
Strengths, benchmarks, and where GPT-5.5 fits in your team's workflow.
1. Strongest Agentic Coding Model
- State-of-the-art on Terminal-Bench 2.0 (82.7%), Expert-SWE (73.1%), and SWE-Bench Pro (58.6%), outperforming GPT-5.4 on complex coding tasks.
- Holds context across large systems, reasons through ambiguous failures, and carries changes through surrounding codebases with fewer tokens.
2. Higher Intelligence at GPT-5.4 Latency
- Co-designed, trained, and served on NVIDIA GB200/GB300 NVL72 systems to match GPT-5.4 per-token latency while performing at a significantly higher level.
- Uses fewer tokens to complete the same tasks, making it more efficient as well as more capable.
3. Powerful for Knowledge Work & Computer Use
- Scores 84.9% on GDPval (44 occupations) and 78.7% on OSWorld-Verified for autonomous computer operation.
- Excels at generating documents, spreadsheets, and reports; naturally moves across finding information, using tools, and checking output.
4. Scientific Research Co-Scientist
- Leading performance on GeneBench, BixBench, and FrontierMath; helped discover a new proof about Ramsey numbers verified in Lean.
- Strong enough to meaningfully accelerate progress at the frontiers of biomedical and mathematical research.
Power your team with GPT-5.5
Appaca is the AI workspace for operators. Build internal tools and AI co-workers powered by GPT-5.5 - 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-5.5 as the engine. No code, no deployment.
Give GPT-5.5 your real data
Connect the tools your team already uses - Slack, Notion, Google Sheets, Airtable, and more - so GPT-5.5 works with real context, not generic answers.
Automate recurring tasks
Schedule GPT-5.5 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-5.5 - connected to the tools you already use.
Where teams use GPT-5.5
See how teams put GPT-5.5 to work inside Appaca - internal tools and AI agents that work around you.
Sales
Score leads, draft follow-ups, and summarise deals with GPT-5.5 doing the heavy lifting.
Explore Appaca for SalesMarketing
Draft, repurpose, and report on campaigns in your brand voice - powered by GPT-5.5.
Explore Appaca for MarketingOperations
Automate reporting, vendor tracking, and process docs with AI built around your workflow.
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Build internal AI tools with GPT-5.5
Describe the tool your team needs and get a working app powered by GPT-5.5 - with a built-in database, team access, and integrations. No code, no deployment.