StepFun (China)
Updated Sep 11, 2026
| Model | 1M input | 1M output | 1M cache read | Context | Released |
|---|
| Step 3.7 Flash | $0.185 | $1.11 | $0.037 | 256k | May 29, 2026 |
| StepAudio 2.5 ASR | — | — | — | — | Apr 24, 2026 |
| StepAudio 2.5 TTS | — | — | — | — | Apr 16, 2026 |
| Step 3.5 Flash 2603 | $0.1 | $0.3 | $0.02 | 256k | Apr 2, 2026 |
| Step TTS 2 | — | — | — | — | Mar 1, 2026 |
| Step 3.5 Flash | $0.1 | $0.3 | $0.02 | 256k | Jan 29, 2026 |
| Step 1 (32K) | $2.05 | $9.59 | $0.41 | 33k | Jan 1, 2025 |
| Step 2 (16K) | $5.21 | $16.44 | $1.04 | 16k | Jan 1, 2025 |