Context
1.0M tokens (~524 books)
Input $/1M
$1.00
Output $/1M
$2.70
Type
multimodal
License
Proprietary
Benchmarks
7 tested
Data as of
About
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...
Tested on 7 benchmarks. Top scores: Artificial Analysis · Long Context Reasoning (88.3%), Artificial Analysis · MMMU Pro (76.4%), Artificial Analysis · SciCode (58.9%).
Capabilities
speed
55.6
#19 globally
Benchmark Scores
Compare AllTested on 7 benchmarks · Ranked across 1 categories
Score Distribution (all 319 models)
0255075100
speedCompare speed →
Quick compare:
vs Qwen3 Coder Next FP8vs Qwen2.5 Coder 32B Instruct AWQ
P
vs Speaker Diarization Community 1 Excellent (85+) Good (70-85) Average (50-70) Below (<50)
Recently Happened
New model: Step 5 Preview by stepfun
Oct 15, 2026
Links
Research
Documentation
Community
BenchGecko API
step-5-preview
Specifications
- Typemultimodal
- Context1.0M tokens (~524 books)
- ReleasedOct 2026
- LicenseProprietary
- Statuspreview
- Cost / Message~$0.005
Available On
Categories
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Frequently Asked Questions
Step 5 Preview is a proprietary multimodal AI model by stepfun, released in October 2026. Context window: 1M tokens.
Related Models
Qwen3 Coder Next FP8 · AlibabaQwen2.5 Coder 32B Instruct AWQ · AlibabaSpeaker Diarization Community 1 · PyannoteGemma 3 12B (free) · Google DeepMindQwen3 Next 80B A3B Instruct (free) · Alibaba QwenKey facts · as of 2026-10-15
- Step 5 Preview by stepfun. Not enough public benchmark scores to rank yet.
- List price $1.00 input · $2.70 output per 1M tokens (as of 2026-10-15).
- Sold by 2 providers (as of 2026-10-15): DeepInfra (fp8) $1.00 in / $2.70 out · StepFun (fp8) $1.00 in / $2.70 out. Every provider
How to cite · data as of 2026-10-15
Step 5 Preview · benchmarks, pricing and providers. BenchGecko, data as of 2026-10-15. https://benchgecko.ai/model/step-5-preview
Credit "Source: BenchGecko" with a link. Prices per provider and Gecko Tests are BenchGecko data (CC BY 4.0); benchmark scores keep their original source, listed in the JSON. JSON · llms.txt · MCP