AA-OmniscienceVerified
57%
AA-Omniscience Accuracy
Models / OpenAI
GPT 5.5
GPT 5 · Released 2026-04-23
OpenAI's April 2026 flagship.
Best generalist for coding agents, research workflows, and tool-heavy automation. The model the desk reaches for when we need coding agents that close the loop on a single issue.
Composite55
Context512K
Input / 1M$13
Output / 1M$50
Knowledge cutoff2026-03-15
Output speed94 t/s
Statusflagship
Family profile
Best published score in each covered benchmark family.
62/100 avg
- Knowledge
- 57
- Reasoning
- 81
- Math
- 52
- Coding
- 67
- Long context
- 52
5 tested benchmark families
Editor's note
GPT 5.5 is the model the desk reaches for when we need coding agents that close the loop on a single issue.Benchmark placements
Per-benchmark positions
Where GPT 5.5 places on each public benchmark source that publishes a row. Rank counts every model with a latest row in the same test — not a universal quality score.
| Benchmark | Family | Rank | Score | Source | Date |
|---|---|---|---|---|---|
| FrontierMath | Math | #2/ 15 | 52 | Epoch AI FrontierMath Tiers 1-3 (v2) CSV | 2026-08-15 |
| DeepSWE | Coding | #4/ 8 | 67 | DeepSWE leaderboard v1.1 | 2026-06-20 |
| AA-Omniscience | Knowledge | #5/ 12 | 57 | Artificial Analysis — AA-Omniscience | 2026-09-01 |
| CritPt | Reasoning | #7/ 12 | 27 | Artificial Analysis — CritPt | 2026-09-01 |
| Humanity's Last Exam | Reasoning | #19/ 186 | 46 | Artificial Analysis | 2026-09-28 |
| SciCode | Coding | #20/ 97 | 56 | Artificial Analysis | 2026-09-28 |
| AA output speed | Performance | #63/ 195 | Artificial Analysis | 2026-10-12 | |
| GPQA Diamond | Reasoning | #132/ 184 | 81 | GPQA Diamond paper leaderboard | 2026-05-15 |
| AA-LCR | Long context | #158/ 184 | 52 | Artificial Analysis — AA-LCR | 2026-06-17 |
Family context
Strongest rows in each family
The three highest-scoring models with pages in each capability family. Where GPT 5.5 shows up, it's highlighted.
KnowledgeGPT 5.5 · 57
- 167
- 265
- 361
ReasoningGPT 5.5 · 81
- 196
- 295
- 395
MathGPT 5.5 · 52
- 152
- 252
- 350
CodingGPT 5.5 · 67
- 174
- 273
- 370
Long contextGPT 5.5 · 52
- 189
- 286
- 385
Newest receipts
6 recentLast 120 days
Benchmark rows added to the public ledger for GPT 5.5 in the last 120 days. Older rows live in the full table below.
| Benchmark | Family | Score | Source | Days ago |
|---|---|---|---|---|
| AA output speed | Performance | 94 t/s | Artificial Analysis | 10 |
| Humanity's Last Exam | Reasoning | 45.8% | Artificial Analysis | 24 |
| SciCode | Coding | 55.8% | Artificial Analysis | 24 |
| CritPt | Reasoning | 27.1% | Artificial Analysis — CritPt | 51 |
| AA-Omniscience | Knowledge | 57% | Artificial Analysis — AA-Omniscience | 51 |
| FrontierMath | Math | 51.7% | Epoch AI FrontierMath Tiers 1-3 (v2) CSV | 68 |
Family coverage
Best score per family
A high composite that hides a weak family is a trap. These bars surface the families where this model hasn't been publicly tested, and where it leads.
Price vs. performance
Where GPT 5.5 sits on the scatter
Hover any dot for name, score, and input price. Keyboard: tab through the top twelve, or use the ranking below.
AnthropicOpenAIGoogleAlibabaMetaZhipuxAIDeepSeekMiniMaxXiaomiMoonshotOtherMeituanMistralNVIDIACohere
Full benchmark ledger
Every catalog benchmark for GPT 5.5. Scores link to the original source; gaps mean no public row exists yet.
9 of 13 catalog benchmarks have a sourced row for GPT 5.5.
Knowledge
Reasoning
CritPtVerified
27.1%
CritPt composite (AA run)
GPQA DiamondVerified
81.2%
GPQA Diamond accuracy (CoT)
Humanity's Last ExamVerified
45.8%
HLE (AA run)
Math
FrontierMathVerified
51.7%
FrontierMath Tiers 1-3 (v2) best Epoch run
Coding
Long context
AA-LCRVerified
52.1%
AA-LCR pass@1
Performance
AA output speedVerified
94 t/s
Median output tokens/s (1k prompt, default provider)
Changelog
Version history
- Released GPT 5.5 with native audio, image, and 512K context.
- GPT 5.4 retired for general availability.
Sources
Where the numbers come from
- OpenAI pricing· checked 2026-06-01
- GPT 5 family announcement· checked 2026-06-01
- Artificial Analysis· checked 2026-06-01
Questions this model page answers
Every answer below is assembled from the dated fields on this page. Nothing is written separately for search.
What is GPT 5.5?
GPT 5.5 is a OpenAI model: OpenAI's April 2026 flagship.
What is GPT 5.5 for?
Best generalist for coding agents, research workflows, and tool-heavy automation. The model the desk reaches for when we need coding agents that close the loop on a single issue.
What does GPT 5.5 cost?
GPT 5.5 lists $13 input and $50 output per 1M tokens. Pricing last checked 2026-06-01.
How large is the GPT 5.5 context window?
GPT 5.5 publishes a 512K token context window.
What is the VerdictPal status of GPT 5.5?
GPT 5.5 carries Flagship status on the model atlas.
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