Overview
Model specifications
- Context
- 1,000,000 tokens
- Maximum output
- 64,000 tokens
- Architecture
- text+image+video->text
- Tokenizer
- Other
- Knowledge cutoff
- Not provided
- Moderated
- No
OPENROUTER
Complete pricing
Synchronized OpenRouter rates. Token prices are shown per one million tokens.
- Input
- $1 per 1M tokens
- Output
- $2.7 per 1M tokens
- Cache read
- $0.05 per 1M tokens
API
Model configuration
Reasoning
- Reasoning required
- Yes
- Default parameters
- medium
- Capabilities
- high, medium, low
API
Quick start
Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.
curl --fail-with-body https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"stepfun/step-5-preview","messages":[{"role":"user","content":"Hello!"}]}'Capabilities
Input → Output
Input
textimagevideo
Output
text
Reasoning
No · high · medium · low
API
Supported API parameters
frequency_penaltyinclude_reasoninglogprobsmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstemperaturetoolstop_logprobstop_pAvailable providers
1 Provider
Checked: October 8, 2026
Live providers on OpenRouter
OpenRouter Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.
StepFun
fp8- Context
- 1M
- Maximum output
- 64K
- Input
- $1
- Output
- $2.7
- Cache read
- $0.05
- Cache write
- Not provided