Claude Fable 5Chat
Anthropic's highest-capability generally available model for long-running agents.
3 rails1M ctx$0.112typical$11.20 → $56.00 /MTok
Playground
Providers
| Provider | Role | Context | Price · in / out | p50 | p95 | Uptime |
|---|---|---|---|---|---|---|
| ggmicloudNo trainingNo training on your data | Primary | 256K | $0.35 / $1.38/MToksame price, any rail | 2.7s | 5.7s | 100% |
| ddeepinfraNo trainingNo training on your data | Fallback | 256K | — | — | — |
Performance
Collecting — charts appear after two days.
Pricing
- Typical
- $0.003/req
- Input
- $0.35/M tok
- Cached input
- $0.17/M tok
- Output
- $1.38/M tok
API
POST/api/v1/chat/completionsOpenAI-compatible
step-3.7-flash
curl https://www.ninjachat.ai/api/v1/chat/completions \
-H "Authorization: Bearer $NINJACHAT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "step-3.7-flash",
"messages": [{ "role": "user", "content": "Hello!" }],
"stream": true
}'messagestemperaturemax_completion_tokenstop_pstopfrequency_penaltypresence_penaltyseedstreamuserroutingtoolstool_choice
FAQ
What is Step 3.7 Flash?
StepFun's efficient reasoning and coding model with capability-aware failover.
How much does Step 3.7 Flash cost?
Step 3.7 Flash costs $0.35/M input tokens and $1.38/M output tokens.
What inputs and outputs does Step 3.7 Flash support?
Step 3.7 Flash accepts text and returns text.
How do I call Step 3.7 Flash?
POST /api/v1/chat/completions with `"model": "step-3.7-flash"`.