StepFun
Latest releases
StepFun
- Step Edge2026-07-12 · Model releaseOriginal release evidenceDate basis: Official StepFun announcement dateChecked: 2026-07-15
- Step Edge Audio2026-07-12 · Model releaseOriginal release evidenceDate basis: Official StepFun announcement dateChecked: 2026-07-15
- Step Edge Gen2026-07-12 · Model releaseOriginal release evidenceDate basis: Official StepFun announcement dateChecked: 2026-07-15
- Step Edge GUI2026-07-12 · Model releaseOriginal release evidenceDate basis: Official StepFun announcement dateChecked: 2026-07-15
Current models
Models, versions, and checkable fields
| Model | Version | Release | OpenRouter | Pricing | Benchmark | Public Signals |
|---|---|---|---|---|---|---|
| Step-3.7-Flash StepFun's current open-weight multimodal flagship for reasoning, tool use, and long context. | step-3.7-flash | 2026-05-29 | OpenRouter listed | Official · 2026-05-29: $0.2 / $1.15 OpenRouter · 2026-07-15: $0.2 / $1.15 input / output, per 1M tokens | No reliable public source | No reliable public source |
| StepAudio 2.5 ASR StepFun's current streaming speech-recognition API. | stepaudio-2.5-asr | Not disclosed | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| StepAudio 2.5 Chat StepFun's current audio-and-text conversational model. | stepaudio-2.5-chat | Not disclosed | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| StepAudio 2.5 Realtime StepFun's bidirectional realtime audio model available through the China-region Step Plan. | stepaudio-2.5-realtime | Not disclosed | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| step-3.5-flash StepFun step-3.5-flash reasoning model. | step-3.5-flash-2603 | 2026-03-01 | OpenRouter listed | OpenRouter · 2026-07-15 · step-3.5-flash: $0.1 / $0.3 input / output, per 1M tokens | LMArena 2 rows | 1 runtime / access record / 1 activity snapshot |
| step-3 Step-3 is a multimodal reasoning model. | step-3 | Not disclosed | Needs confirmation | OpenRouter candidate (needs confirmation) · 2026-07-15: $0.1 / $0.3 input / output, per 1M tokens | LMArena 2 rows | No reliable public source |
| step-1o-turbo-vision step-1o-turbo-vision vision-understanding model. | step-1o-turbo-vision | Not disclosed | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| stepaudio-2.5-tts stepaudio-2.5-tts speech synthesis model. | stepaudio-2.5-tts | Not disclosed | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| Step Edge Step Edge is a text-and-vision base model for phones, vehicles, and other edge scenarios, covering image understanding, GUI grounding, tool use, and spatial and video understanding. | Step Edge | 2026-07-12 | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| Step Edge Audio Step Edge Audio is an audio foundation model for phones, vehicles, and other edge scenarios, covering audio understanding, speech-semantic reasoning, and ASR. | Step Edge Audio | 2026-07-12 | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| Step Edge GUI Step Edge GUI targets local closed-loop GUI agent tasks on desktop and mobile edge devices, covering interface understanding, grounding, and action execution. | Step Edge GUI | 2026-07-12 | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
| Step Edge Gen Step Edge Gen is an image generation and editing model for edge deployment, supporting local text-to-image generation and image editing. | Step Edge Gen | 2026-07-12 | Not separately listed on OpenRouter | No reliable public source | No reliable public source | No reliable public source |
OpenRouter
Availability, pricing, and context
| Model | Version | Status | Pricing | Context | Time |
|---|---|---|---|---|---|
| step-3.5-flash | step-3.5-flash | OpenRouter listed | $0.1 / $0.3 | 262144 | 07/15/2026, 08:11 PM UTC |
| Step-3.7-Flash | step-3.7-flash | OpenRouter listed | $0.2 / $1.15 | 256000 | 07/15/2026, 08:11 PM UTC |
| Step Edge | Step Edge | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| Step Edge Audio | Step Edge Audio | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| Step Edge Gen | Step Edge Gen | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| Step Edge GUI | Step Edge GUI | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| step-1o-turbo-vision | step-1o-turbo-vision | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| step-3 | step-3 | Needs confirmation | $0.1 / $0.3 | 262144 | 07/15/2026, 08:11 PM UTC |
| step-3.5-flash | step-3.5-flash-2603 | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| StepAudio 2.5 ASR | stepaudio-2.5-asr | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| StepAudio 2.5 Chat | stepaudio-2.5-chat | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
| StepAudio 2.5 Realtime | stepaudio-2.5-realtime | Not separately listed on OpenRouter | Not applicable | Not disclosed | 07/15/2026, 08:11 PM UTC |
Hot Ranking
Linked ranking rows
| Source | Rank | Model | Value | Time |
|---|---|---|---|---|
| OpenRouter weekly token usage | 10 | StepFun: Step 3.7 Flash | 1,011,421,562,264 tokens Current snapshot | 07/15/2026, 08:16 PM UTC |
Public activity counters
Cumulative Hugging Face model-card counters
| Source | Model | Count | Link |
|---|---|---|---|
| huggingface | step-3.5-flash | 144,100 downloads / 827 likes | View source |
Public signals
Public activity and review entry points
| Source | Target | Type | Value | Link |
|---|---|---|---|---|
| huggingface | step-3.5-flash | Public activity | 144100 downloads / 827 likes | View source |
| huggingface | step-3.5-flash | Model runtime/access signal | Questions re: config.json | View source |
Evidence gaps
Company-level display boundary
Public-signal coverage is No safe source