Lineage
- Company
OpenAI- GPT Sol family
- GPT-5.6 SolGPT-6 SolGPT-6.1 Solthe family
- Assistants that offer it
- No assistant in the ranking names it on a page we have read.
- API price
- not recorded
Links read on 10/11/2026 on company pages, the press as a fallback; a link given for a family applies only to its latest version.
Rank in each benchmark
- General intelligenceEpoch AI, ECI index163.0160.7 to 165.612th out of 71
- User preferenceLMArena, Elo score148518th out of 68
- Agent tasksEpoch AI, APEX-Agents51.4 %40.6 to 62.230th out of 52
- Coding tasksEpoch AI, CursorBench41.7 %11th out of 18
- Code repairEpoch AI, DeepSWE72.7 %4th out of 26
Each segment of the bar is worth a tenth of the ranking; the 1st groups the best ranked. Rank among models released in 2026 and measured by the benchmark. Sources: Epoch AI, "Capabilities & benchmarking" (CC BY 4.0); LMArena, text with style control (CC BY 4.0); data as of 10 November 2026.
Effort settings
| Setting | Electricity use of a task | Tasks completed | Tokens per task |
|---|---|---|---|
| CursorBench, coding tasks | |||
| low | not estimated | 24.6 % | 4,885 |
| medium | not estimated | 31.1 % | 10,111 |
| high | not estimated | 35.7 % | 16,174 |
| xhigh | not estimated | 37.7 % | 24,729 |
| max | not estimated | 41.7 % | 42,944 |
| DeepSWE, code repair | |||
| low | not estimated | 45.4 % | 10,579 |
| medium | not estimated | 61.1 % | 18,425 |
| high | not estimated | 69.4 % | 28,450 |
| xhigh | not estimated | 70.7 % | 40,745 |
| max | not estimated | 72.7 % | 60,014 |
Estimation methodology
The effort setting says how much the model reasons before answering: the higher it is, the more tokens it writes, and the more electricity the task needs. Tokens per task are measured by Epoch AI.
Electricity: Projet Celsius estimate. Tokens of the task × electricity ofwriting 1,000 tokens for the size of the model (AI Impact Database, IA-0011), × the data centre overhead (PUE). The scope covers computing on the servers and cooling; it does not cover chip manufacturing, training, the network or the device. CursorBench counts tokens read and written together: the range runs from "all read" to "all written". DeepSWE counts tokens written: the range starts from writing alone.
Model size unknown: electricity use is not estimated. Benchmark: a quick question to an assistant needs about 0.3 Wh.
GPT-5.6 Sol among OpenAI's models, general intelligence
Epoch AI ECI index and its 95% interval, by release date; 14 OpenAI models released in 2026 and measured by the ECI index
Dot: the index measured, at the release dateLine: the 95% intervalGPT-5.6 Sol5 names in the "Table" tab
Source: Epoch AI, "Capabilities & benchmarking", ECI index. CC BY 4.0 licence.
Continue in the ranking
The full ranking →CompanyOpenAI14models measured, of which 10 with an entryIts assistant, its models, its governance and the electricity of its data centres.The entry →FamilyOpenAIGPT Sol3measured versionsThe versions of the family, their release and their rank in each benchmark.The family →AssistantChatGPT62out of 100, 3rd out of 10OpenAI's assistant; no page we have read says that it offers GPT-5.6 Sol.The entry →The hub newsletter
This month's ranking, news on the impact of AI and one figure from the AI Impact Database. One newsletter a month at most, free of charge. Past issues
