Indicators / series
epoch_bench.gpt_5_4_nano.eci_closed.pt
Source: Epoch AI benchmarks and Capabilities Index (Epoch AI) · CC BY 4.0 · CSV
Epoch AI, Benchmarking Hub and Epoch Capabilities Index (CC BY 4.0)
| id | value | grade | as of date | published date | tier | audited vs reported | extraction method | review status | retrieved at | http status | content hash | supersedes id | url | flags |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| c8f4ecf8780478fb | 146 index (143–148) | grade A, evidence tier 1 | 2026-03-17 | 2026-03-17 | 1 | reported | api | approved | 2026-09-10T06:33:11.514623Z | 200 | cde2f74ecf00 | — | source page |
Raw snippets and dispute text
- c8f4ecf8780478fb {"Accessibility group": "Closed weights", "Display name": "GPT-5.4 Nano", "Model": "GPT-5.4 Nano", "Organization": "OpenAI", "date": "2026-03-17", "eci": "145.87", "eci_ci_high": "147.52", "eci_ci_low": "143.46"}