first-partycommon.labs_models

StepFun (China)

8 published models are listed on StepFun (China). Prices shown are this provider's own listings and may differ from first-party.

stepfun/docs ↗STEPFUN_API_KEY@ai-sdk/openai-compatible

Models

Labs

Free tier

Changes 30d

01Catalog

All 8 models on StepFun (China)

Filter by lab. Click a row for the model's full profile.

Model	Lab	Input	Output	Context	Flags
Step 3.5 Flash step-3.5-flash	StepFun	$0.10	$0.30	256,000	reasoningopen weights
Step 3.5 Flash 2603 step-3.5-flash-2603	StepFun	$0.10	$0.30	256,000	reasoningopen weights
Step 3.7 Flash step-3.7-flash	StepFun	$0.18	$1.11	256,000	reasoningopen weights
Step 1 (32K) step-1-32k	StepFun	$2.05	$9.59	32,768
Step 2 (16K) step-2-16k	StepFun	$5.21	$16.44	16,384
Step TTS 2 step-tts-2	StepFun	Not listed	Not listed	0
StepAudio 2.5 ASR stepaudio-2.5-asr	StepFun	Not listed	Not listed	0
StepAudio 2.5 TTS stepaudio-2.5-tts	StepFun	Not listed	Not listed	0

02Activity

2026-07-09Price cutStep 3.7 Flashinput / 1M $0.20 → $0.18

2026-07-09Price cutStep 3.7 Flashoutput / 1M $1.15 → $1.11

2026-07-02AddedStep TTS 2offering → new

2026-07-02AddedStepAudio 2.5 ASRoffering → new

2026-07-02AddedStepAudio 2.5 TTSoffering → new

2026-06-29Price upStep 3.7 Flashinput / 1M $0.18 → $0.20

2026-06-29Price upStep 3.7 Flashoutput / 1M $1.11 → $1.15

2026-06-28Price cutStep 3.7 Flashinput / 1M $0.19 → $0.18

2026-06-28Price cutStep 3.7 Flashoutput / 1M $1.13 → $1.11

2026-06-25Price upStep 3.7 Flashinput / 1M $0.18 → $0.19

2026-06-25Price upStep 3.7 Flashoutput / 1M $1.11 → $1.13

2026-06-16Price upStep 3.5 Flashinput / 1M $0.10 → $0.10

2026-06-16Price upStep 3.5 Flashoutput / 1M $0.29 → $0.30

2026-06-15ContextStep 3.7 FlashContext window 256,000 → new

2026-06-15ContextStep 3.7 FlashMax output 256,000 → new

2026-05-30Price cutStep 3.7 Flashinput / 1M $0.20 → $0.18

2026-05-30Price cutStep 3.7 Flashoutput / 1M $1.15 → $1.11

2026-05-30AddedStep 3.7 Flashoffering → new

2026-04-07AddedStep 3.5 Flash 2603offering → new

2026-02-13AddedStep 1 (32K)offering → new