StepFun Step 3.5 Flash vs ElevenMusic
Which one should you pick? Here's the full breakdown.
StepFun Step 3.5 Flash
StepFun's (China) agent-focused open-weight model -- Step 3.5 Flash launched 2026-02-01. 196B sparse MoE, ~11B active. Benchmarks slightly ahead of DeepSeek V3.2 at over 3x smaller total size. Step 3 (321B / 38B active, Apache 2.0) and Step3-VL-10B multimodal also in the family
ElevenMusic
ElevenLabs' iOS music app -- commercially licensed from day one, voice-cloning stack built in, free tier 7 songs/day. Launched 2026-04-02 as the first credible challenger to Suno's mobile dominance
| Category | StepFun Step 3.5 Flash | ElevenMusic |
|---|---|---|
| Ease of Use | 6.0 | 9.0 |
| Output Quality | 8.0 | 7.0 |
| Value | 9.0 | 8.0 |
| Features | 8.0 | 7.0 |
| Overall | 7.8 | 7.8 |
Pricing Comparison
| Feature | StepFun Step 3.5 Flash | ElevenMusic |
|---|---|---|
| Free Tier | Yes | Yes |
| Starting Price | $0 | $0 |
Which Should You Pick?
Pick StepFun Step 3.5 Flash if...
- ✓Higher output quality (8 vs 7)
- ✓Better value for money (9/10)
- ✓More features (8 vs 7)
Teams building agent systems on Chinese open-weight foundations who want something other than DeepSeek or Qwen, especially if agentic tool-use is the primary workload. Also good for Chinese-market products where StepFun's domestic tuning advantages matter. And for anyone looking to add diversity to their open-weight evaluation matrix beyond the top-3 Chinese labs.
Visit StepFun Step 3.5 FlashPick ElevenMusic if...
- ✓Easier to use (9 vs 6)
Mobile content creators who value commercial safety over raw track volume, and anyone who wants to put their own voice on an AI-generated track without juggling multiple tools. Also the obvious pick for creators nervous about the Suno-UMG situation.
Visit ElevenMusicOur Verdict
StepFun Step 3.5 Flash and ElevenMusic are extremely close overall. Your choice comes down to specific needs -- StepFun Step 3.5 Flash is better for teams building agent systems on chinese open-weight foundations who want something other than deepseek or qwen, especially if agentic tool-use is the primary workload, while ElevenMusic works best for mobile content creators who value commercial safety over raw track volume, and anyone who wants to put their own voice on an ai-generated track without juggling multiple tools.