GPT-5.4 Pro is the stronger all-rounder.GPT-5.4 is cheaper.
Scores updated · 16 tests both models report · How we compare
Where each one wins
Tests won in each of the four areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Agents rests on a single test.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
GPT-5.4 costs 92% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where GPT-5.4 Pro pulls ahead
- Abstract visual puzzles that people can solveARC-AGI-2+10points ahead
- Extremely hard research-level math problemsFrontierMath Tier 4+9.5points ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+6.6points ahead
Where GPT-5.4 pulls ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+1points ahead
Every test, side by side
All 16 tests both models report. The winning score is in its model's colour; marks a score checked independently.
ReasoningGPT-5.4 Pro
- ARC-AGI-2GPT-5.4 Pro by 1073.383.3+10
- CritPtGPT-5.4 Pro by 6.623.430+6.6
- GPQA DiamondGPT-5.4 Pro by 2.49294.4+2.4
- Humanity's Last ExamGPT-5.4 by 143.742.7+1
FactsEven
- Vectara HHEM hallucination ratelower is betterGPT-5.4 by 1.378.3+1.3
- SimpleQA VerifiedGPT-5.4 Pro by 1.245.146.3+1.2
MathGPT-5.4 Pro
- FrontierMath Tier 4GPT-5.4 Pro by 9.54958.5+9.5
- FrontierMath Tiers 1-3 (v2)GPT-5.4 Pro by 3.978.682.5+3.9
Other results7 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- frontiermath_tier_4_v1GPT-5.4 Pro by 10.427.137.5+10.4
- HLE (with tools)GPT-5.4 Pro by 6.75258.7+6.7
- vectara_avg_summary_lengthGPT-5.4 Pro by 66.8 rating points81.7148.5+66.8 rating
- Finance AgentGPT-5.4 Pro by 5.55661.5+5.5
- vectara_factual_consistencyGPT-5.4 by 1.39391.7+1.3
- ARC-AGI-1tie93.794.5tie
- vectara_answer_ratetie99.9100tie
Questions people ask
Which is better, GPT-5.4 or GPT-5.4 Pro?
GPT-5.4 Pro wins three of the four areas where both have results: agents, reasoning and math. GPT-5.4 wins none, but costs 92% less. They are level on facts.
Which is cheaper?
GPT-5.4 costs $2.50 per million input tokens and $15.00 per million output tokens; GPT-5.4 Pro costs $30.00 and $180.00. That makes GPT-5.4 about 92% cheaper for the same work.
How do you compare the two?
We use the 16 benchmark tests both models have published scores on. The verdict counts the 9 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 7 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.