Falcon (TII) vs StepFun Step 3.5 Flash
Which one should you pick? Here's the full breakdown.
Falcon (TII)
UAE's Technology Innovation Institute open-weights family -- Falcon 3 optimized for efficient sub-10B deployment on consumer hardware
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
| Category | Falcon (TII) | StepFun Step 3.5 Flash |
|---|---|---|
| Ease of Use | 7.0 | 6.0 |
| Output Quality | 6.5 | 8.0 |
| Value | 9.0 | 9.0 |
| Features | 6.0 | 8.0 |
| Overall | 7.1 | 7.8 |
Pricing Comparison
| Feature | Falcon (TII) | StepFun Step 3.5 Flash |
|---|---|---|
| Free Tier | Yes | Yes |
| Starting Price | $0 | $0 |
Benchmark Head-to-Head
Falcon 3 10B benchmarks — StepFun Step 3.5 Flash has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| MMLU | Knowledge across 57 subjects | 73.1% |
| GPQA Diamond | Graduate-level science questions | 42.5% |
| HumanEval | Python code generation | 73.8% |
| MATH | Math problem solving | 55.4% |
Which Should You Pick?
Pick Falcon (TII) if...
- ✓Easier to use (7 vs 6)
Developers who need a genuinely Apache-2.0 small model for on-device or edge deployment, or who need strong Arabic/multilingual support.
Visit Falcon (TII)Pick StepFun Step 3.5 Flash if...
- ✓Higher output quality (8 vs 6.5)
- ✓More features (8 vs 6)
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 FlashOur Verdict
StepFun Step 3.5 Flash edges out Falcon (TII) with a 7.8 vs 7.1 overall score. Both are solid picks, but StepFun Step 3.5 Flash has the advantage in output quality.