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GPT-5.2 in fedi-index

The score in every slice, what it is made of, value, local run and history.

fedi-index · General

A 1,428 ±5

Percentile 82 · #53

People prefer / Solves tasks

1,421 / 1,438

Human votes vs benchmarks, Elo-eq

Value

+12

$4.81 per 1M tokens, median of 26 providers · vendor $4.81

On your hardware

Closed weights: cloud only.

Score decomposition

A General 1,428 [1,423–1,434] Percentile 82 · #53 · components: 9
Source Component Value Elo-eq Weight Measured Variant
Epoch AI eci 153 ±0.97 1,465 ±8 33.4% 2025-12-11 —
LMArena text/overall 1,439 ±2.04 1,439 ±2 15.8% 2026-10-02 —
LMArena text/hard_prompts 1,445 ±2.50 1,435 ±2 15.7% 2026-10-02 —
LMArena text/instruction_following 1,417 ±3.16 1,429 ±3 7.7% 2026-10-02 —
LMArena text/expert 1,445 ±4.93 1,431 ±4 7.5% 2026-10-02 high
Epoch AI simpleqa_verified decay ×0.61 0.37 ±0.02 1,414 ±5 3.9% 2026-08-27 xhigh
LMArena text/longer_query 1,428 ±3.05 1,427 ±3 3.9% 2026-10-02 —
LMArena text/multi_turn 1,458 ±3.96 1,452 ±4 3.8% 2026-10-02 —
Epoch AI gpqa_diamond decay ×0.26 0.91 ±0.02 1,465 ±8 1.4% 2025-12-13 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

B Coding 1,409 [1,405–1,414] Percentile 73 · #76 · components: 3
Source Component Value Elo-eq Weight Measured Variant
LMArena text/coding 1,447 ±3.42 1,423 ±3 39.0% 2026-10-02 —
LMArena webdev/overall 1,415 ±11 1,426 ±3 38.8% 2026-10-01 —
Epoch AI swe_bench_verified decay ×0.37 0.74 ±0.02 1,452 ±10 13.7% 2026-02-12 high

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

C Agents 1,412 [1,400–1,425] Percentile 32 · #40 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
τ²-bench (Sierra) tau2/banking_knowledge decay ×0.76 0.32 ±0.05 1,467 ±8 79.2% 2026-05-05 high

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 1,426 [1,419–1,433] Percentile 84 · #43 · components: 3
Source Component Value Elo-eq Weight Measured Variant
LMArena text/math 1,439 ±5.49 1,431 ±5 52.7% 2026-10-02 high
Epoch AI frontiermath_t1_3 decay ×0.86 0.67 ±0.03 1,467 ±6 29.3% 2026-06-11 xhigh
Epoch AI frontiermath_t4 decay ×0.86 0.32 ±0.07 1,443 ±12 10.6% 2026-06-11 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

B Vision 1,432 [1,428–1,436] Percentile 68 · #37 · components: 3 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena vision/overall 1,268 ±3.32 1,446 ±3 63.1% 2026-10-02 —
LMArena vision/ocr 1,275 ±3.44 1,447 ±3 15.6% 2026-10-02 —
LMArena vision/diagram 1,285 ±5.11 1,450 ±4 15.0% 2026-10-02 —

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

B Writing 1,415 [1,410–1,421] Percentile 73 · #74 · components: 2 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/creative_writing 1,402 ±4.28 1,430 ±4 61.5% 2026-10-02 —
LMArena text/longer_query 1,428 ±3.05 1,427 ±3 32.2% 2026-10-02 —

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

B Language: 繁體中文 1,407 [1,398–1,416] Percentile 62 · #86 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/chinese 1,460 ±6.31 1,421 ±5 93.5% 2026-10-02 —

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

B Language: Deutsch 1,422 [1,402–1,442] Percentile 72 · #41 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/german 1,448 ±13 1,443 ±11 91.2% 2026-10-02 —

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

B Language: English 1,422 [1,417–1,428] Percentile 75 · #70 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/english 1,446 ±2.81 1,436 ±3 93.9% 2026-10-02 —

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

B Language: Español 1,412 [1,397–1,427] Percentile 57 · #65 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/spanish 1,433 ±9.08 1,429 ±8 92.4% 2026-10-02 —

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

B Language: Français 1,421 [1,406–1,435] Percentile 65 · #48 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/french 1,456 ±8.68 1,438 ±8 92.6% 2026-10-02 high

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

B Language: 日本語 1,421 [1,400–1,441] Percentile 72 · #36 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/japanese 1,420 ±15 1,442 ±11 91.1% 2026-10-02 high

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

B Language: 한국어 1,409 [1,391–1,427] Percentile 62 · #53 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/korean 1,390 ±13 1,428 ±10 91.7% 2026-10-02 —

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

B Language: Polski 1,417 [1,400–1,434] Percentile 60 · #53 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/polish 1,434 ±11 1,436 ±10 91.9% 2026-10-02 —

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

B Language: Русский 1,428 [1,420–1,435] Percentile 78 · #51 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/russian 1,440 ±4.72 1,443 ±4 93.7% 2026-10-02 —

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

fedi-index by month
The same in a table
Model 2026-10
GPT-5.2 1,428 A

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fedi-index: GPT-5.2

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