GPT-5.5 Pro in fedi-index
The score in every slice, what it is made of, value, local run and history.
fedi-index · General
A 1,471 ±22
Percentile 98 · #8 · provisional
People prefer / Solves tasks
— / 1,499
Human votes vs benchmarks, Elo-eq
Value
-10
$67.50 per 1M tokens, median of 17 providers · vendor $67.50
On your hardware
Closed weights: cloud only.
Score decomposition
A General 1,471 [1,449–1,493] Percentile 98 · #8 · components: 1 provisional
| Source | Component | Value | Elo-eq | Weight | Measured | Variant |
|---|---|---|---|---|---|---|
| Epoch AI |
eci
|
162 ±1.74 | 1,533 ±14 | 81.3% | 2026-04-23 | — |
Weight is the share of the component in the score (the rest is the prior that pulls models with little data towards the population median). Methodology
A Math 1,467 [1,460–1,474] Percentile 97 · #9 · components: 2 provisional
| Source | Component | Value | Elo-eq | Weight | Measured | Variant |
|---|---|---|---|---|---|---|
| Epoch AI |
frontiermath_t1_3
decay ×0.86 |
0.88 ±0.02 | 1,511 ±4 | 62.6% | 2026-06-12 | xhigh |
| Epoch AI |
frontiermath_t4
decay ×0.86 |
0.78 ±0.07 | 1,517 ±10 | 22.8% | 2026-06-12 | xhigh |
Weight is the share of the component in the score (the rest is the prior that pulls models with little data towards the population median). Methodology
History
The same in a table
| Model | 2026-10 |
|---|---|
| GPT-5.5 Pro | 1,471 A |
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