Best cell per row highlighted. Null means undisclosed — never counted as zero.
| Provider | OpenAI | OpenAI |
| Family / tier | GPT-5 · nano | GPT-5 · Pro |
| Status | GA | GA |
| Released | 2026-03-16 | 2026-04-22 |
| Knowledge cutoff | 2025-08 | 2025-12 |
| Context window | 400K | 1.1M |
| Max output tokens | 128K | 128K |
| Input modalities | text, image | text, image |
| Reasoning mode | optional | optional |
| Open weights | No | No |
| Input | $0.2 | $5 |
| Output | $1.25 | $30 |
| Cached input | $0.02 | $0.5 |
| Batch input | $0.1 | $2.5 |
| Free tier | No | No |
| Output speed (tok/s) | 250 | 68.7 |
| Time to first token (s) | 0.4 | 64 |
| Latency tier | fast | slow |
| Trains on inputs | No | No |
| License | Proprietary | Proprietary |
| Clouds | Azure OpenAI, Azure AI Foundry | Azure OpenAI, Azure AI Foundry |
| Compliance | SOC2, GDPR, CCPA, HIPAA | SOC2, GDPR, CCPA, HIPAA |
| Unified score | 8.2 | 8.7 |
| Decision Maker | 8 | 9 |
| Domain Strategist | 8 | 8.8 |
| Finance Lead | 10 | 7 |
| Domain Practitioner | 8 | 9.2 |
| Power User | 7 | 9 |
| Skeptic | 8 | 7.8 |
| Value score | 9.9 | 6.5 |
| MMLU-Pro | — | 92.4 |
| GPQA Diamond | 82.8 | 93.6 |
| SWE-bench Verified | — | 88.7 |
| MMMU | — | 81.2 |
| TAU-bench | — | 98 |
| Terminal-Bench | — | 82.7 |
| MRCR Long Context | — | 74 |
| Humanity's Last Exam | — | 41.4 |
| LMArena Elo | — | 1476 |
| Artificial Analysis Index | — | 60 |
Scores link to their sources. Missing cells mean the vendor hasn't disclosed a result — honesty over padding.