StepFun
online
Step-2 frontier model. Free credits for developers.
LLMest. 2023 · Beijing, China
83
/ 100 APIVault Score
// At a glance
Free Tier
Free dev credits · phone required
Category
LLM
Credit Card
Not required
Last Verified
1m ago
// Free tier details
Available Models
Step-2Step-1.5V (vision)Step-Audio
Monthly Tokens
Free developer credits on signup
No credit card needed
Phone verification required
// Quick start
300">"text-purple-400">from openai 300">"text-purple-400">import OpenAI
client = OpenAI(
api_key=300">"YOUR_STEPFUN_KEY",
base_url=300">"https://api.stepfun.com/v1",
)
response = client.chat.completions.create(
model=300">"step-2-16k",
messages=[{300">"role": 300">"user", 300">"content": 300">"Hello."}],
)
print(response.choices[0].message.content)// Overview
StepFun's Step-2 is a frontier Chinese LLM with strong reasoning and 256K context. The developer platform offers free credits for new users.
// Pros
- 256K context window
- Strong reasoning
- OpenAI-compatible
// Cons
- Phone required
- Mostly Chinese documentation
- Limited English support
// Score breakdown
Reliability (35%) (from 1m ago health check)100/100
Free Tier Generosity (30%) (computed from quota, no-CC, no-phone fields)75/100
Documentation (20%) (human rating)76/100
Popularity (15%) (GitHub stars (log-normalised), or manual baseline)70/100
Methodology: apivault.dev/methodology
// Best for
Chinese AI appsLong-context analysisReasoning tasks