GPT-5.4 Thinking
reasoningOpenAI•Released on 2026-03-05
GPT-5.4's reasoning variant with adjustable thinking depth. Replaces GPT-5.2 Thinking (deprecated June 2026). Supports four effort levels from 'low' to 'xhigh' for balancing speed vs reasoning depth. Available for Plus, Team, and Pro subscribers.
89
Overall Score
Core Specs
1050K
Context Window
128K
Max Output
✓
Reasoning
✗
Open Source
Multimodal Support
textimage
Scenario Scores
User Feedback Highlights
Based on community feedback. Hover to see original reviews.
+ Unified model (no separate Codex needed)+ Strong on complex problem-solving− Reasoning tokens count toward output cost+ Adjustable reasoning effort levels− Higher latency at xhigh effort+ Native computer use + reasoning combined− GPT-5.2 Thinking users must migrate by June 2026
Sentiment:👍 52%😐 35%👎 13%
Pros & Cons
Pros
- +Adjustable reasoning effort levels
- +Strong on complex problem-solving
- +Unified model (no separate Codex needed)
- +Native computer use + reasoning combined
Cons
- −Higher latency at xhigh effort
- −Reasoning tokens count toward output cost
- −GPT-5.2 Thinking users must migrate by June 2026
Reliability
Pricing
Input (per 1M tokens)$2.50
Output (per 1M tokens)$15.00
Subscription$20/month
Updated on 2026-03-06
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Compare with Others
Benchmarks
sweBenchPro57.7%
gdpval83%
osWorld75%
gpqaDiamond93.2%
arcAgi254.2%