StepFun
- Models
- 11
- Hosted by a direct provider
- 9
Provider counts exclude gateways. Also matched as: stepfun-ai.
| Model | Compare | Type | Released | Context | Providers | Input $/1M | Output $/1M |
|---|---|---|---|---|---|---|---|
| Step 5 Preview | Chat | 2026-09-16 | 1M | 12 +9 | $0.959–$1.375 | $2.70–$3.71 | |
| Step 3.7 Flash | Chat | 2026-05-29 | 256K | 10 +13 | $0.185–$0.200 | $1.11–$1.15 | |
| StepAudio 2.5 ASR | Transcription | 2026-04-24 | 2 | n/a | |||
| StepAudio 2.5 TTS | Speech synthesis | 2026-04-16 | 2 | n/a | |||
| Step 3.5 Flash 2603 | Chat | 2026-04-02 | 256K | 5 +1 | $0.10 | $0.30 | |
| Step TTS 2 | Speech synthesis | 2026-03-01 | 2 | n/a | |||
| Step 3.5 Flash | Chat | 2026-01-29 | 256K | 9 +7 | $0.09–$0.10 | $0.30 | |
| Gelab Zero 4b Preview | Chat | 2025-12-23 | 8.2K | 0 +1 | |||
| Step-3 | Chat | 2025-07-31 | 65.5K | 0 +1 | |||
| Step 1 (32K) | Chat | 2025-01-01 | 32.8K | 2 | $2.05 | $9.59 | |
| Step 2 (16K) | Chat | 2025-01-01 | 16.4K | 2 | $5.21 | $16.44 |
Providers: direct count, then “+n” gateways. Prices are the range across comparable direct providers (gateways, subscription plans, deprecated endpoints and anything that is not a paid per-token price excluded); models only on gateways show the cheapest gateway list price. Non-token models show their native unit.