Skip to content
fedi.software

GPT-4.1 Nano in fedi-index

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

fedi-index · General

C 1,279 ±9

Percentile 30 · #204

People prefer / Solves tasks

1,282 / 1,273

Human votes vs benchmarks, Elo-eq

Value

-57

$0.175 per 1M tokens, median of 21 providers · vendor $0.175

On your hardware

Closed weights: cloud only.

Score decomposition

C General 1,279 [1,270–1,288] Percentile 30 · #204 · components: 9
Source Component Value Elo-eq Weight Measured Variant
Epoch AI eci 130 ±2.23 1,277 ±18 23.2% 2025-04-14 —
LMArena text/overall 1,285 ±3.90 1,285 ±4 19.7% 2026-10-02 —
LMArena text/hard_prompts 1,286 ±6.88 1,292 ±6 17.9% 2026-10-02 —
LMArena text/instruction_following 1,267 ±6.32 1,287 ±6 9.1% 2026-10-02 —
LMArena text/expert 1,271 ±15 1,289 ±13 6.2% 2026-10-02 —
Epoch AI simpleqa_verified decay ×0.61 0.06 ±0.01 1,316 ±2 5.5% 2026-08-31 —
LMArena text/multi_turn 1,277 ±9.19 1,287 ±8 4.0% 2026-10-02 —
LMArena text/longer_query 1,283 ±10 1,291 ±10 3.8% 2026-10-02 —
Epoch AI gpqa_diamond decay ×0.26 0.49 ±0.02 1,267 ±12 1.5% 2025-04-14 —

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 Coding 1,286 [1,271–1,301] Percentile 29 · #197 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/coding 1,306 ±9.83 1,297 ±9 87.7% 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

C Math 1,261 [1,243–1,280] Percentile 31 · #176 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/math 1,274 ±12 1,272 ±11 83.7% 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

D Vision 1,256 [1,241–1,272] Percentile 18 · #93 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena vision/overall 1,063 ±9.33 1,261 ±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

C Writing 1,280 [1,268–1,293] Percentile 33 · #181 · components: 2 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/creative_writing 1,260 ±9.29 1,286 ±10 61.3% 2026-10-02 —
LMArena text/longer_query 1,283 ±10 1,291 ±10 30.7% 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

C Language: English 1,280 [1,271–1,290] Percentile 32 · #185 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/english 1,303 ±4.99 1,286 ±5 93.4% 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

C Language: Русский 1,276 [1,258–1,293] Percentile 25 · #175 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/russian 1,261 ±11 1,282 ±10 92.0% 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

History

fedi-index by month
The same in a table
Model 2026-10
GPT-4.1 Nano 1,279 C

Badge

Show the model's fedi-index on your site or in a README. The badge updates itself; it links to this page.

fedi-index: GPT-4.1 Nano

Data CC BY 4.0: keep the link to fedi.software.