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The AI Model Price Index

DeepSeek: DeepSeek V3.1 Terminus

by Kilo Gateway · listed Sep 2025RTW

DeepSeek chat model for instruction following, coding, and analysis

Current rates USD per 1M tokens

Input$0.21
Output$0.79
Cache read$0.13
Cache write

Against the market

Input price vs. maker flagships ($/1M tokens)
DeepSeek V4 FlashDeepSeek V4 Flash: $0.14 per 1M tokens$0.14DeepSeek: DeepSeek V3.1 TerminusDeepSeek: DeepSeek V3.1 Terminus: $0.21 per 1M tokens$0.21Qwen3.7 PlusQwen3.7 Plus: $0.50 per 1M tokens$0.50Grok 4.3Grok 4.3: $1.25 per 1M tokens$1.25Gemini 3.5 FlashGemini 3.5 Flash: $1.50 per 1M tokens$1.50Mistral Medium (latest)Mistral Medium (latest): $1.50 per 1M tokens$1.50Claude Sonnet 5Claude Sonnet 5: $2.00 per 1M tokens$2.00GPT-5.5 ProGPT-5.5 Pro: $30.00 per 1M tokens$30.00
Output price vs. maker flagships ($/1M tokens)
DeepSeek V4 FlashDeepSeek V4 Flash: $0.28 per 1M tokens$0.28DeepSeek: DeepSeek V3.1 TerminusDeepSeek: DeepSeek V3.1 Terminus: $0.79 per 1M tokens$0.79Grok 4.3Grok 4.3: $2.50 per 1M tokens$2.50Qwen3.7 PlusQwen3.7 Plus: $3.00 per 1M tokens$3.00Mistral Medium (latest)Mistral Medium (latest): $7.50 per 1M tokens$7.50Gemini 3.5 FlashGemini 3.5 Flash: $9.00 per 1M tokens$9.00Claude Sonnet 5Claude Sonnet 5: $10.00 per 1M tokens$10.00GPT-5.5 ProGPT-5.5 Pro: $180 per 1M tokens$180

On the record

Model id
deepseek/deepseek-v3.1-terminus
Context window
164K tokens
Max output
33K tokens
Input modalities
text
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
yes
Knowledge cutoff
Released
2025-09-22
Last updated
2025-09-22
Provider docs
kilo.ai

Back of the envelope

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