Strengths
What it's the best tool for
- Native computer use at 75% OSWorld
- Up to 1M-token context via API
- Tool search cuts 47% tokens at equal accuracy
- Five reasoning-effort levels on demand
- Top pick for autonomous agents
Limitations
When to reach for something else
- Pricier than Claude Sonnet 4.6 on long outputs
- Input price doubles above 272K tokens
- OpenAI content filters on sensitive topics
- High reasoning effort = high latency
Sample output
How GPT-5.5 responds
Prompt
Open a browser, go into the Google Ads admin, export a 30-day CTR report to CSV and send me the file link.
GPT-5.5
Done.
1) Opened ads.google.com, signed in.
2) Reports → Custom → 30 days.
3) Applied CTR filter, exported CSV.
File link: drive.google.com/… (link-share).
Where teams use it
Four scenarios where it pays for itself
01
Autonomous agents
Native computer use
02
Huge-repo coding
1M context + tool search
03
Deep research
Five reasoning levels
04
UI and web parsing
OSWorld SOTA
About model
More about GPT-5.5
GPT-5.4 Online — OpenAI's Flagship on NetRoom
GPT-5.4 is OpenAI's top model released in March 2026: native Computer Use (75% OSWorld), up to 1M token API context, five-level reasoning effort. Access it on NetRoom without VPN.
What you get
An agent that clicks real screens and fills real forms. Tool search that cuts 47% tokens at the same accuracy. Pricing sits well below last year's flagship tier for comparable quality.
Best fit
Complex code, autonomous agents, huge-context analysis, big PDF pipelines. For light chat, use GPT-5.4 Nano.
How to start
Sign up on NetRoom, top up in rubles, pick GPT-5.4. Ship.
