OpenAI
GPT-5.4
OpenAI's March 2026 flagship for professional work, coding and computer use, since succeeded by GPT-5.5 and the GPT-5.6 family.
Our editorial assessment, based on the public sources listed below. Last reviewed .
- Overall rank
- #46
- Tier
- A
- Score
- 79.6
- Main category
- Overall
Strengths
- 1.05M-token context window with up to 128K output tokens
- Built-in computer use, tool search, hosted shell and MCP support in the API
- Adjustable reasoning effort from none to xhigh
Considerations
- Costs $2.50/$15 per 1M tokens, with higher rates above 272K input tokens
- Succeeded by GPT-5.5 (April 2026) and the GPT-5.6 family (July 2026)
Price
API $2.50 input / $15 output per 1M tokens
Shown for reference — price is not part of the score.
Score breakdown
- Performance
- 80.0
- 55% of score
- Reputation
- 84.0
- 35% of score
- Recency
- 62.0
- 10% of score
The overall score combines these sub-scores using the weights shown. How we score →
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
- Pricing
- Benchmark
- Reputation
- Feature list
Checked against the sources listed below.
Sources
- Introducing GPT-5.4 - OpenAI (opens in a new tab)Accessed:
- OpenAI API — GPT-5.5 model page (succeeds GPT-5.4) (opens in a new tab)Accessed:
- OpenAI — Introducing GPT-5.5 (opens in a new tab)Accessed:
- GMI Cloud — BenchAlign leaderboard, August 2026 (opens in a new tab)Accessed:
- AI Models in 2026: Which One Should You Actually Use? - GuruSup (opens in a new tab)Accessed:
Show 16 more sources
- TeamAI (opens in a new tab)Accessed:
- Introducing the AI Frontier Model Tracker | DemandSphere (opens in a new tab)Accessed:
- Voronoi - Smartest AI Models 2026 (opens in a new tab)Accessed:
- LMCouncil AI Model Benchmarks Apr 2026 (opens in a new tab)Accessed:
- OpenAI Model Release Notes (opens in a new tab)Accessed:
- OpenAI API Changelog (opens in a new tab)Accessed:
- ChatGPT Release Notes - March 5, 2026 (opens in a new tab)Accessed:
- Introducing OpenAI o3 and o4-mini (opens in a new tab)Accessed:
- Best AI Models 2026: Gemini, GPT-5.5, DeepSeek & More (opens in a new tab)Accessed:
- Top AI Models 2026: How To Choose (opens in a new tab)Accessed:
- 15 Best AI Models in 2026 - Fluence (opens in a new tab)Accessed:
- Top 5 LLMs for March 2026: Benchmarks & Picks - AlphaCorp AI (opens in a new tab)Accessed:
- Top AI Models March 2026: The Complete Ranked Guide (opens in a new tab)Accessed:
- Labellerr: 5 Best AI Reasoning Models of 2026 (opens in a new tab)Accessed:
- LinkedIn - Best AI Models April 2026 (opens in a new tab)Accessed:
- BuildMVPFast - Best AI Models April 2026 (opens in a new tab)Accessed:
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