Step 5 Previewopen
StepFun
56.7#95 of 427 overall
- Input / output
- US$ 1,00 / US$ 2,70 US$ per 1M tokens
- Context
- 1.0M tokens
- Release
- 10/08/2026 release date
- Speed
- 163 tok/s first token in 0.70 s
Family history
The 2 versions of this family, from first to newest, by release date. Click a point to open that version.
See the data as a table
| Model | Released | Score | Rank | AA Intel. | Elo Arena |
|---|---|---|---|---|---|
| Step-3 | — | — | — | — | 1350 |
| Step 5 Preview | 10/08/2026 | 56.7 | #95 | 28.5 | 1443 |
Scores by source
Scores by sourcepercentile = % of ranked models it beats| Metric | Value | Percentile | Source |
|---|---|---|---|
| LiveBench weight 3 | 58.6 | 26% | LiveBench |
| AA Intelligence Index weight 3 | 28.5 | 51% | Artificial Analysis |
| Arena text (Elo) weight 2 | 1443 | 73% | LMArena |
| Arena WebDev (Elo) weight 1 | 1571 | 70% | LMArena |
| Arena vision (Elo) weight 0.5 | 1265 | 64% | LMArena |
| Humanity's Last Exam weight 1 | 46.5 | 95% | Artificial Analysis |
| Terminal-Bench weight 1 | 33.3 | 86% | Artificial Analysis |
| Long-context reasoning | 88.3 | 100% | Artificial Analysis |
| LiveBench long agentic | 19.4 | 29% | LiveBench |
| LiveBench reasoning | 83.8 | 42% | LiveBench |
| LiveBench coding | 85.6 | 52% | LiveBench |
| LiveBench browser | 24.8 | 23% | LiveBench |
| LiveBench data analysis | 63.5 | 16% | LiveBench |
| LiveBench research | 72.8 | 42% | LiveBench |
| LiveBench design | 76.9 | 48% | LiveBench |
By category
| Category | Score | Rank | Metrics |
|---|---|---|---|
| Agentic | 54.9 | #52 | LiveBench long agentic, Terminal-Bench |
| Coding | 57.1 | #35 | LiveBench coding, Arena WebDev (Elo) |
| Reasoning | 62.4 | #128 | LiveBench reasoning, Humanity's Last Exam |
| Data analysis | 33.0 | #27 | LiveBench data analysis |
| Research | 64.0 | #71 | LiveBench research, Long-context reasoning |
| Design | 56.1 | #39 | LiveBench design, Arena WebDev (Elo) |
| Browser use | 36.3 | #25 | LiveBench browser |
| Chat | 61.4 | #54 | Arena text (Elo) |
| Vision | 56.9 | #39 | Arena vision (Elo) |
History
RankingIA score on each collection day (hover to see the rank).
Daily collection started on 10/30/2026. The chart appears from the second day the model is ranked.