Step 5 Preview Benchmarks, Pricing & Rankings
StepFun · 2026-10-08 · Closed · Current
Snapshot 2026-11-06 · updated weekly
Step 5 Preview ranks #31 of 71 on the AMR leaderboard.
Step 5 Preview benchmark scores
Step 5 Preview price, speed & context
Input price
$1
per 1M tokens
StepFun rate card · 2026-10-28
Output price
$2.70
per 1M tokens
Speed
—
tok/s
Context
1.0M
tokens
About Step 5 Preview
Step 5 Preview is StepFun’s flagship for agentic work, a sparse MoE with 600B total / 27B active parameters, strong in software engineering per Artificial Analysis (intelligence index 44). $1/$2.70 per million tokens with a 1M context on OpenRouter since October 8; benchmark columns land in the next snapshot.
Models around Step 5 Preview in the rankings
Step 5 Preview FAQ
Where does Step 5 Preview rank?
Step 5 Preview ranks #31 of 71 tracked AI models on the AMR aggregate as of October 2026, with an aggregate score of 73.0. Its strongest dimension is AMR at 73.0.
How much does Step 5 Preview cost?
Step 5 Preview costs $1 per million input tokens and $2.70 per million output tokens on the standard API. At a typical 1:3 input/output agent workload, that blends to roughly $2.28 per million tokens.
What is the Step 5 Preview context window?
Step 5 Preview supports a 1.0M token context window and generates at a median 0 output tokens per second. That context fits roughly 699 standard documents in a single prompt.
Is Step 5 Preview open source?
No — Step 5 Preview is a closed model available only through StepFun’s official API and authorized cloud partners.
What is better than Step 5 Preview?
GLM-5.3 Prime ranks one place higher at #30 with an AMR score of 73.2. Step 5 Preview still wins 0 of the tracked dimensions head-to-head — check the comparison table to see exactly which.