StepFun Step 3.5 Flash vs OpenClaw
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
OpenClaw
Open-source personal AI agent you talk to through Signal, Telegram, Discord, or WhatsApp. WARNING: March 2026 disclosed 9 CVEs (including CVSS 9.9) with 135,000+ exposed public instances -- verify hardening before running anywhere sensitive
| Category | StepFun Step 3.5 Flash | OpenClaw |
|---|---|---|
| Ease of Use | 6.0 | 6.0 |
| Output Quality | 8.0 | 8.0 |
| Value | 9.0 | 8.0 |
| Features | 8.0 | 8.5 |
| Overall | 7.8 | 7.6 |
Pricing Comparison
| Feature | StepFun Step 3.5 Flash | OpenClaw |
|---|---|---|
| Free Tier | Yes | Yes |
| Starting Price | $0 | $0 |
Which Should You Pick?
Pick StepFun Step 3.5 Flash if...
- ✓Better value for money (9/10)
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 OpenClaw if...
Technical users who will properly harden the deployment -- latest-patch version, firewall, no credentials with production write access, skill allow-list. If you can take operational responsibility for running a locally-deployed agent that holds credentials, the messaging-first UX and BYO-LLM flexibility are still genuinely valuable.
Visit OpenClawOur Verdict
StepFun Step 3.5 Flash and OpenClaw 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 OpenClaw works best for technical users who will properly harden the deployment -- latest-patch version, firewall, no credentials with production write access, skill allow-list.