GPT-5.4
VS
GPT-5.5
GPT-5.4 vs GPT-5.5: which wins at real work?
22 task areas · same graded test runs · rank comparison only, so 0–100 and Elo collections never mix raw scores.
GPT-5.5 wins 15 of 22 task areas we tested; GPT-5.4 takes 7. GPT-5.4 costs 2.0× less per token ($17.5 vs $35 per 1M).
GPT-5.4 costs 2.0× less per token ($17.5 vs $35 per 1M).
Task by task
| Task area | GPT-5.4 | GPT-5.5 | Winner |
|---|---|---|---|
| Landing Pages |
#32
/ 72
Strong
|
#4
/ 72
Strong
|
GPT-5.5 |
| AI Strategy |
#34
/ 126
Strong
|
#59
/ 126
Strong
|
GPT-5.4 |
| Chef / Home Cooking |
#18
/ 126
Strong
|
#4
/ 126
Strong
|
GPT-5.5 |
| Executive Assistant |
#24
/ 112
Strong
|
#10
/ 112
Strong
|
GPT-5.5 |
| Translation & Localization |
#17
/ 110
Excellent
|
#3
/ 110
Excellent
|
GPT-5.5 |
| RAG, Safety & Grounding |
#27
/ 113
Excellent
|
#14
/ 113
Excellent
|
GPT-5.5 |
| Content & Brand |
#14
/ 124
Strong
|
#2
/ 124
Strong
|
GPT-5.5 |
| Legal & HR |
#20
/ 110
Excellent
|
#9
/ 110
Excellent
|
GPT-5.5 |
| Customer Support |
#11
/ 113
Strong
|
#2
/ 113
Strong
|
GPT-5.5 |
| Frontend & Landing Pages |
#20
/ 109
Needs editing
|
#11
/ 109
Needs editing
|
GPT-5.5 |
| Coding |
#9
/ 115
Excellent
|
#1
/ 115
Excellent
|
GPT-5.5 |
| Investor & Pitch |
#7
/ 66
Strong
|
#15
/ 66
Strong
|
GPT-5.4 |
| Data & Analytics |
#40
/ 110
Excellent
|
#46
/ 110
Excellent
|
GPT-5.4 |
| Research & Competitive Analysis |
#1
/ 110
Excellent
|
#7
/ 110
Excellent
|
GPT-5.4 |
| Structured Output |
#9
/ 113
Excellent
|
#3
/ 113
Excellent
|
GPT-5.5 |
| Training & Education |
#68
/ 110
Strong
|
#62
/ 110
Excellent
|
GPT-5.5 |
| Product & Project Management |
#13
/ 110
Excellent
|
#8
/ 110
Excellent
|
GPT-5.5 |
| Creative & Comedy | #6 / 110 | #2 / 110 | GPT-5.5 |
| Knowledge & Docs |
#1
/ 110
Excellent
|
#5
/ 110
Excellent
|
GPT-5.4 |
| Presentations & Decks |
#1
/ 110
Excellent
|
#3
/ 110
Excellent
|
GPT-5.4 |
| Sales |
#41
/ 110
Usable
|
#42
/ 110
Usable
|
GPT-5.4 |
| Summarization & Meeting Notes |
#11
/ 110
Excellent
|
#10
/ 110
Excellent
|
GPT-5.5 |
Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.
Frequently asked
Is GPT-5.4 better than GPT-5.5?
Across 22 task areas we benchmarked, GPT-5.5 ranks higher in 15 and GPT-5.4 in 7.
Which is cheaper, GPT-5.4 or GPT-5.5?
GPT-5.4 costs 2.0× less per token ($17.5 vs $35 per 1M).
What is GPT-5.4 better at?
GPT-5.4 out-ranks GPT-5.5 at AI Strategy, Investor & Pitch, Data & Analytics.
What is GPT-5.5 better at?
GPT-5.5 out-ranks GPT-5.4 at Landing Pages, Chef / Home Cooking, Executive Assistant.
This page is Spring Prompt, running
We just did this for every model. Do it for your prompt.
The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.
- Generate test cases from your prompt — no eval set required to start.
- Compare models side by side with quality, cost and latency in one matrix.
- Optimise the winner until the scores say it's ready to ship.
Prompt × model results
12 test cases · 3 evals