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Claude Sonnet 4.6 in fedi-index

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

fedi-index · General

A 1,443 ±6

Percentile 88 · #35

People prefer / Solves tasks

1,453 / 1,428

Human votes vs benchmarks, Elo-eq

Value

+21

$6 per 1M tokens, median of 42 providers · vendor $6

On your hardware

Closed weights: cloud only.

Score decomposition

A General 1,443 [1,437–1,449] Percentile 88 · #35 · components: 9
Source Component Value Elo-eq Weight Measured Variant
Epoch AI eci 152 ±1.17 1,455 ±9 31.3% 2026-02-17 —
LMArena text/overall 1,458 ±1.79 1,458 ±2 16.2% 2026-10-02 —
LMArena text/hard_prompts 1,484 ±2.17 1,471 ±2 16.2% 2026-10-02 —
LMArena text/instruction_following 1,475 ±2.64 1,484 ±2 8.0% 2026-10-02 —
LMArena text/expert 1,500 ±3.99 1,476 ±3 7.8% 2026-10-02 —
LMArena text/longer_query 1,479 ±2.53 1,474 ±2 4.0% 2026-10-02 —
Epoch AI simpleqa_verified decay ×0.61 0.36 ±0.02 1,409 ±5 4.0% 2026-08-10 high
LMArena text/multi_turn 1,464 ±3.27 1,457 ±3 4.0% 2026-10-02 —
Epoch AI gpqa_diamond decay ×0.26 0.87 ±0.02 1,446 ±9 1.4% 2026-02-20 32k

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 Coding 1,442 [1,439–1,446] Percentile 92 · #23 · components: 3
Source Component Value Elo-eq Weight Measured Variant
LMArena webdev/overall 1,522 ±2.62 1,456 ±1 39.6% 2026-10-06 —
LMArena text/coding 1,504 ±2.83 1,474 ±2 38.6% 2026-10-02 —
Epoch AI swe_bench_verified decay ×0.37 0.75 ±0.02 1,459 ±10 13.5% 2026-02-21 —

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 1,423 [1,415–1,432] Percentile 83 · #44 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/math 1,463 ±5.12 1,454 ±5 87.8% 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

A Vision 1,446 [1,442–1,450] Percentile 80 · #23 · components: 3 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena vision/overall 1,283 ±3.14 1,459 ±3 62.9% 2026-10-02 —
LMArena vision/ocr 1,296 ±3.13 1,467 ±3 15.7% 2026-10-02 —
LMArena vision/diagram 1,305 ±4.33 1,468 ±4 15.3% 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

A Writing 1,452 [1,447–1,456] Percentile 86 · #37 · components: 2 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/creative_writing 1,435 ±3.33 1,464 ±3 62.1% 2026-10-02 —
LMArena text/longer_query 1,479 ±2.53 1,474 ±2 31.8% 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 1,431 [1,424–1,438] Percentile 78 · #49 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/chinese 1,491 ±4.83 1,446 ±4 93.8% 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 1,410 [1,396–1,424] Percentile 63 · #54 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/german 1,428 ±9.11 1,426 ±8 92.6% 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

A Language: English 1,448 [1,444–1,453] Percentile 89 · #31 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/english 1,472 ±2.39 1,464 ±2 94.0% 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

A Language: Español 1,440 [1,428–1,452] Percentile 84 · #25 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/spanish 1,464 ±7.08 1,457 ±7 93.1% 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 1,430 [1,418–1,442] Percentile 72 · #39 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/french 1,465 ±7.23 1,447 ±7 93.0% 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 Language: 日本語 1,423 [1,407–1,438] Percentile 75 · #33 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/japanese 1,419 ±11 1,441 ±9 92.3% 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: 한국어 1,426 [1,413–1,440] Percentile 74 · #36 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/korean 1,411 ±9.52 1,444 ±7 92.8% 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 1,426 [1,414–1,439] Percentile 72 · #37 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/polish 1,442 ±8.07 1,443 ±7 93.0% 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 Language: Русский 1,428 [1,422–1,434] Percentile 79 · #50 · components: 1 provisional
Source Component Value Elo-eq Weight Measured Variant
LMArena text/russian 1,440 ±3.76 1,443 ±3 93.8% 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

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The same in a table
Model 2026-10
Claude Sonnet 4.6 1,443 A

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fedi-index: Claude Sonnet 4.6

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