DeepSeek V3.1 Terminus (Thinking) API
About
Process massive datasets with DeepSeek V3.1 Terminus (Thinking), featuring an expansive 128K context window for long-document analysis. This model delivers cost-effective pricing at $0.25/1M input and $0.70/1M output tokens, native tool calling support. Access DeepSeek V3.1 Terminus (Thinking) via the NanoGPT API with up to 66K output tokens.
Capabilities
Input Modalities
text
Output Modalities
text
Reasoning
No
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Limits
Context Window
128K
Tokens
Input Limit
128K
Tokens
Max Output
66K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.25
Output
$0.70
Frequently Asked Questions
DeepSeek V3.1 Terminus (Thinking) by NanoGPT costs $0.25 per 1M input tokens and $0.70 per 1M output tokens.
Model Details
ID
deepseek-ai/DeepSeek-V3.1-Terminus:thinking
Provider
NanoGPTFamily
deepseek-thinking
Release Date
Sep 22, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NANO_GPT_API_KEY
API Base URL
https://nano-gpt.com/api/v1