OpenAI · frontier
Is GPT-5.5 good?
GPT-5.5 places top-3 in 8 of 22 task areas we tested. It's strongest at content & brand and weakest at training & education. It's a top-tier (premium) option ($35/1M tokens).
Our take
Strengths
Weak spots
How GPT-5.5 ranks, task by task
Rank is the position in each field; Rating is the absolute quality bar. A model can be rated "Excellent" yet sit mid-table when the whole field is strong — and vice-versa.
| Task area | Rank | Percentile | Rating |
|---|---|---|---|
| Coding | #2 of 52 |
|
Excellent |
| Content & Brand | #2 of 50 |
|
Strong |
| Presentations & Decks | #2 of 44 |
|
Excellent |
| Structured Output | #2 of 43 |
|
Excellent |
| Chef / Home Cooking | #3 of 50 |
|
Strong |
| Knowledge & Docs | #5 of 94 |
|
Excellent |
| Product & Project Management | #3 of 44 |
|
Excellent |
| Research & Competitive Analysis | #3 of 44 |
|
Excellent |
| Translation & Localization | #3 of 44 |
|
Excellent |
| Landing Pages | #4 of 56 |
|
Strong |
| Executive Assistant | #4 of 50 |
|
Strong |
| Frontend & Landing Pages | #9 of 93 |
|
Needs editing |
| RAG, Safety & Grounding | #4 of 35 |
|
Excellent |
| Customer Support | #6 of 43 |
|
Strong |
| Investor & Pitch | #7 of 50 |
|
Strong |
| Summarization & Meeting Notes | #7 of 44 |
|
Excellent |
| Legal & HR | #10 of 44 |
|
Excellent |
| Data & Analytics | #23 of 69 |
|
Excellent |
| AI Strategy | #22 of 50 |
|
Strong |
| Creative & Comedy | #21 of 44 |
|
Elo |
| Sales | #22 of 44 |
|
Usable |
| Training & Education | #27 of 44 |
|
Excellent |
Industry benchmarks
Standardized third-party scores, shown for context — these are independent of our real-task tests.
Artificial Analysis indices
Design Arena — human preference (avg Elo 1300)
Headline vs. real-world
GPT-5.5's real-world results broadly track its headline Intelligence Index.
Source: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings). (2026-06-29) · Source: Design Arena (www.designarena.ai) via OpenRouter (openrouter.ai/rankings). (2026-06-29)
Like GPT-5.5, but…
Similar
- Gemini 3.1 Pro Preview Premium
- Claude Opus 4.8 Frontier
- Qwen3.7 Max Mid
Cheaper
- Qwen3.7 Max 86% cheaper
- Gemini 3.1 Pro Preview 60% cheaper
- Claude Opus 4.8 14% cheaper
Smarter
No clear alternative.
Frequently asked
Is GPT-5.5 any good?
GPT-5.5 places top-3 in 8 of 22 task areas we benchmarked. It performs best at Content & Brand.
What is GPT-5.5 best at?
Its strongest task areas are Content & Brand, Coding, Presentations & Decks.
Is there a cheaper alternative to GPT-5.5?
Qwen3.7 Max is 86% cheaper and stays competitive on quality across our benchmarks.
How we test & rank
Each model is scored on real tasks across 22 task areas by an LLM judge with deterministic checks. "Percentile" is this model's standing within each area's field; the cross-area figures are rank-based so quality and Elo scores are never mixed.
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