Step 5 Preview

StepFunKey step-5-previewAlso reported as newapi/step-5-preview, cline-free/step-5-preview, stepfun step plan/step-5-preview, stepfun/step-5-preview, stepfun-ai/step-5-preview

Rank
#136
by active users
Active users
2
Down 1 from 3 active users in the previous 7 days. vs previous 7 days
Adoption
0.3%
of 613 accounts
Tokens
24.1M
cache included
Est. cost
—
at public list prices
First seen
Sep 20, 2026
in any submission

Nov 7–13, 2026 (UTC)613 accounts100% of tokens from an identified modelData through Nov 13, 2026, 05:57 UTCHow we count

Daily active users

Distinct accounts that used this model on each UTC day.

0 active users on Nov 13, 2026

Daily active users for Step 5 Preview, Nov 7, 2026 to Nov 13, 2026. Peak 2. Use the left and right arrow keys to read each day.210
Show daily values
Daily active users and tokens for Step 5 Preview
Date (UTC)Active usersTokens
Nov 7, 202600
Nov 8, 202600
Nov 9, 202600
Nov 10, 202616.4M
Nov 11, 202600
Nov 12, 2026217.6M
Nov 13, 202600

Token mix

How the 24.1M tokens split. Cache reads are usually most of an agent's tokens and are priced far below input.

  • Input5.3%
  • Output0.6%
  • Cache read94%
  • Cache write0%
  • Reasoning0%

Agents that carry Step 5 Preview

Each agent's share of this model's tokens, and how many accounts used the model through it.

  1. Claude Code65% of this model's tokens1active users
  2. DeepSeek Harness35% of this model's tokens1active users
  3. Kimi<0.1% of this model's tokens1active users

Benchmarks

The best result for Step 5 Preview in each benchmark Tokscale tracks. Each benchmark has its own unit, run conditions and source, so compare a score only with other models on the same benchmark. Rank is among the models Tokscale matched in that benchmark.

All benchmarks
  • WebDev ArenaWeb development · LMArena
    1,567
    Rank #35 of 110 matched modelsHighPublished Oct 19, 2026Source: huggingface.co (opens in a new tab)
  • Agent ArenaAgents · LMArena
    −0.02
    Rank #33 of 48 matched modelsArena Agent ModePublished Oct 19, 2026Source: huggingface.co (opens in a new tab)

Not evaluated: Epoch Capabilities Index, GPQA Diamond, Humanity's Last Exam, FrontierMath Tiers 1–3 (v2), SimpleQA Verified, Terminal-Bench 4.1, CursorBench, DeepSWE, FrontierSWE. A missing result is not a score of zero.

Pricing

List prices from models.dev in US dollars per 1M tokens, retrieved Nov 12, 2026. StepFun (China) is the lab's own API and the reference price for the estimates below.

Price at real agent usageEstimate at list prices

What 1M tokens cost at the reference list price when they split into input, output and cache the way Tokscale users' agents used them. It is not what anyone paid.

At this model's mix
$0.17
Est. per 1M tokens
94% cache reads
At the community mix
$0.15
Est. per 1M tokens
96% cache reads
3:1 input/output blend
$1.53
Per 1M tokens at list prices
No cache

Cache reads were 94% of Step 5 Preview tokens in the last 7 days and 96% of all tokens. The 3:1 blend, (3 × input + output) ÷ 4, is the usual comparison and ignores cache.

Assumptions

  • StepFun (China) list prices per 1M tokens: input $1.05, output $2.99, cache read $0.10.
  • This model's mix is its own input, output, cache and reasoning tokens in the last 7 days.
  • The community mix is the tokens of every identified model in the last 7 days.
  • This is an estimate at list prices, not what anyone paid.
  • Reasoning tokens are priced as output.
  • Long-context tiers, batch pricing and discounts are not applied.
  • Token mixes come from public Tokscale submissions. Hidden accounts are excluded.
  • No cache-write price is listed, so cache writes are priced as input.

List prices by provider

  • StepFun (China)Referencestep-5-preview
    $1.05 input per 1M tokens$2.99 output per 1M tokens$0.10 cache read per 1M tokensCache write not listed1M tokens of context
  • OpenRouterstepfun/step-5-preview
    $1 input per 1M tokens$2.70 output per 1M tokens$0.10 cache read per 1M tokensCache write not listed1M tokens of context
  • Vercel AI Gatewaystepfun/step-5-preview
    $1 input per 1M tokens$2.70 output per 1M tokens$0.10 cache read per 1M tokensCache write not listed1.05M tokens of context
  • Deep Infrastepfun-ai/Step-5-Preview
    $1 input per 1M tokens$2.70 output per 1M tokens$0.10 cache read per 1M tokensCache write not listed1.05M tokens of context

Specs

From models.dev (MIT), retrieved Nov 12, 2026, as the lab or the first listed provider reports them. A dash means models.dev does not list the value.

Context window
1M tokens
Max output
66K tokens
Input
Text, Image, Video
Output
Text
Knowledge cutoff
— not listed
Release date
Sep 16, 2026
Open weights
Yes
Reasoning
Yes
Tool calling
Yes

Top public profiles

Public profiles that used Step 5 Preview most in this period, by tokens. Hidden accounts are never listed.

  1. 1fanziyun@fanziyun15.5Mtokens—est. cost1active daysno price · 1 active days
  2. 2dlivxpr@dlivxpr8.5Mtokens—est. cost2active daysno price · 2 active days

More from StepFun

Other StepFun models in the same period, by active users.

  1. Step 3.7 Flash Free0.3% adoption2active users
  2. Step 5 Latest0.2% adoption1active users
  3. Step 3.5 Flash 26030.2% adoption1active users
  4. Step 3.5 Flash0.2% adoption1active users
All models

Sources and attribution

Each score keeps its own source, unit and run conditions. Tokscale does not combine benchmarks into one score, and a missing score means the model was not evaluated, not that it scored zero.

  • LMArenaWebDev Arena and Agent Arena leaderboards.CC BY 4.0 · Retrieved Oct 21, 2026 · Data through Oct 19, 2026LMArena leaderboard dataset (lmarena-ai/leaderboard-dataset), Hugging Face.
  • models.devSpecs and list prices per provider.MIT · Retrieved Nov 12, 2026models.dev, an open catalog of AI models (github.com/anomalyco/models.dev).
  • TokscaleActive users, tokens and token mix from public Tokscale submissions. Hidden accounts are excluded.How we count