HeliconeDeepSeek V3.1 Terminus model ID, context window & pricing
deepseek
Quick facts
Model ID deepseek-v3.1-terminus
Source Helicone
Context Window 128000
Pricing $0.27 input / $1.00 output per 1M tokens
Capabilities tool calling, reasoning, temperature control
Model overview
DeepSeek V3.1 Terminus is an AI model from Helicone with 128000 token context window and text input support.
Published pricing is $0.27 input and $1.00 output per 1M tokens.
- Workloads that use text inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID deepseek-v3.1-terminus
Provider Helicone
Family deepseek
Status -
Knowledge Cutoff 2025-09
Release Date 2025-09-22
Input Modalities text
Output Modalities text
Context Window 128000
Input Limit -
Output Limit 16384
Tool Calling Yes
Reasoning Yes
Structured Output -
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $0.27
Output Cost / 1M tokens $1.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.22
Cache Write Cost / 1M tokens -