StepFun

Step 5 PreviewOpen weights

Released 2026-09-18 · Context 1049K · Data snapshot 2026-10-22

Overall score

54.2

Ranked #36
Benchmark coverage
68.2%
15 third-party benchmarks
Context window
1049K
tokens
Input price
$1.00
Cache read $0.10
Output price
$2.70
per million tokens
OpenRouter usage
#15
2.3T tokens/day

Prices converted at snapshot-day rate (USD/CNY 6.6761)

Dimension performance

Reasoning65.8
Human preference63.9
Office59.9
Coding44.3
Above averageBelow averageAnchored at 50 (reference models’ average); every 15 points ≈ one standard deviation

Benchmark details

Coding3 items
LiveBench 2.0 · Coding85.6
LiveBench 2.0 · Long Agentic27.5
LiveBench 2.0 · Browser24
Reasoning2 items
LiveBench 2.0 · Reasoning83.8
AA Intelligence Index43.7
Office9 items
LiveBench 2.0 · Design76.9
LiveBench 2.0 · Research72.8
LiveBench 2.0 · Data Analysis63.5
AA Economics52.8
AA Strategy & Ops47.1
AA Legal46.2
AA Finance & Accounting45.4
AA Engineering45
AA Healthcare & Medical41.1
Human preference1 items
LMArena Human Blind Vote1446.2508

Multiple reasoning tiers of the same benchmark take the best value; raw scores have different scales and are not comparable across benchmarks.

Score trend

2026-10-202026-10-22
View daily data
2026-10-2254.2
2026-10-2154.0
2026-10-2054.1
Scores and prices come from third-party public data (Artificial Analysis / LMArena / OpenRouter). 50 is the reference models’ average; every 15 points ≈ one standard deviation. Prices are converted at snapshot-day rates and provided for reference only. Return to LLM Leaderboard.