Step-Audio 2 Step-Audio 2 Technical Report Paper • 2507.16632 • Published Jul 22 • 71 stepfun-ai/Step-Audio-2-mini Any-to-Any • 8B • Updated 17 days ago • 7.21k • 229 stepfun-ai/Step-Audio-2-mini-Think 8B • Updated 11 days ago • 95 • 11 stepfun-ai/Step-Audio-2-mini-Base 8B • Updated 21 days ago • 134 • 22
NextStep-1 stepfun-ai/NextStep-1-f8ch16-Tokenizer Updated Aug 14 • 51 • 14 stepfun-ai/NextStep-1-Large Text-to-Image • 15B • Updated Aug 19 • 4.22k • 92 stepfun-ai/NextStep-1-Large-Edit Image-to-Image • 15B • Updated Aug 19 • 353 • 47 stepfun-ai/NextStep-1-Large-Pretrain Text-to-Image • 15B • Updated Aug 19 • 1.89k • 15
Step3 stepfun-ai/step3-fp8 Image-Text-to-Text • Updated Aug 2 • 1.54k • 20 stepfun-ai/step3 Image-Text-to-Text • 321B • Updated Aug 2 • 70k • 158
StepFun-Formalizer stepfun-ai/StepFun-Formalizer-7B Text Generation • 8B • Updated Aug 19 • 204 • 3 stepfun-ai/StepFun-Formalizer-32B Text Generation • 33B • Updated Aug 20 • 114 • 5 StepFun-Formalizer: Unlocking the Autoformalization Potential of LLMs through Knowledge-Reasoning Fusion Paper • 2508.04440 • Published Aug 6 • 9
StepFun-Formalizer: Unlocking the Autoformalization Potential of LLMs through Knowledge-Reasoning Fusion Paper • 2508.04440 • Published Aug 6 • 9
StepFun-Prover Preview stepfun-ai/StepFun-Prover-Preview-32B Text Generation • 33B • Updated Aug 13 • 258 • 11 stepfun-ai/StepFun-Prover-Preview-7B Text Generation • 8B • Updated Aug 13 • 651 • 3
Step-Audio Step-Audio model family, including Audio-Tokenizer, Audio-Chat and TTS stepfun-ai/Step-Audio-Tokenizer Updated Feb 18 • 40 stepfun-ai/Step-Audio-Chat Audio-Text-to-Text • 132B • Updated Feb 17 • 31 • 457 stepfun-ai/Step-Audio-TTS-3B Text-to-Speech • 4B • Updated Feb 17 • 67 • 190 stepfun-ai/Step-Audio-AQAA 137B • Updated Jun 12 • 15 • 45
Step-Audio 2 Step-Audio 2 Technical Report Paper • 2507.16632 • Published Jul 22 • 71 stepfun-ai/Step-Audio-2-mini Any-to-Any • 8B • Updated 17 days ago • 7.21k • 229 stepfun-ai/Step-Audio-2-mini-Think 8B • Updated 11 days ago • 95 • 11 stepfun-ai/Step-Audio-2-mini-Base 8B • Updated 21 days ago • 134 • 22
StepFun-Formalizer stepfun-ai/StepFun-Formalizer-7B Text Generation • 8B • Updated Aug 19 • 204 • 3 stepfun-ai/StepFun-Formalizer-32B Text Generation • 33B • Updated Aug 20 • 114 • 5 StepFun-Formalizer: Unlocking the Autoformalization Potential of LLMs through Knowledge-Reasoning Fusion Paper • 2508.04440 • Published Aug 6 • 9
StepFun-Formalizer: Unlocking the Autoformalization Potential of LLMs through Knowledge-Reasoning Fusion Paper • 2508.04440 • Published Aug 6 • 9
NextStep-1 stepfun-ai/NextStep-1-f8ch16-Tokenizer Updated Aug 14 • 51 • 14 stepfun-ai/NextStep-1-Large Text-to-Image • 15B • Updated Aug 19 • 4.22k • 92 stepfun-ai/NextStep-1-Large-Edit Image-to-Image • 15B • Updated Aug 19 • 353 • 47 stepfun-ai/NextStep-1-Large-Pretrain Text-to-Image • 15B • Updated Aug 19 • 1.89k • 15
StepFun-Prover Preview stepfun-ai/StepFun-Prover-Preview-32B Text Generation • 33B • Updated Aug 13 • 258 • 11 stepfun-ai/StepFun-Prover-Preview-7B Text Generation • 8B • Updated Aug 13 • 651 • 3
Step3 stepfun-ai/step3-fp8 Image-Text-to-Text • Updated Aug 2 • 1.54k • 20 stepfun-ai/step3 Image-Text-to-Text • 321B • Updated Aug 2 • 70k • 158
Step-Audio Step-Audio model family, including Audio-Tokenizer, Audio-Chat and TTS stepfun-ai/Step-Audio-Tokenizer Updated Feb 18 • 40 stepfun-ai/Step-Audio-Chat Audio-Text-to-Text • 132B • Updated Feb 17 • 31 • 457 stepfun-ai/Step-Audio-TTS-3B Text-to-Speech • 4B • Updated Feb 17 • 67 • 190 stepfun-ai/Step-Audio-AQAA 137B • Updated Jun 12 • 15 • 45
