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DeepSeek V3.1 Terminus (Thinking)
deepseek·deepseek/deepseek-v3.1-terminus-thinking-2·GA·Open weights·deepseek-thinking series
DeepSeek chat model for instruction following, coding, and analysis
At a glance
Reference price$0.25 / $0.70 per 1M
Cache read $0.125 · NanoGPT
Lowest paid$0.25 / $0.70
NanoGPT Gateway
Context128,000
Output limit65,536
Capabilities
Reasoning✓ Tool use✓ Structured output? TemperatureAttachments
Modalities
Text
Knowledge cutoff—
Released / updated2024-01-01 / 2025-09-22
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| NanoGPT deepseek-ai/DeepSeek-V3.1-Terminus:thinking | Gateway | $0.25 | $0.70 | $0.125 | — | 128,000 | 65,536 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1NanoGPT$70.00
The cheapest paid channel is the only channel.
Related models
DeepSeek V4 Pro 0813same series$1.65 / $4.95DeepSeek V4 Pro 0813 Thinkingsame series$1.10 / $2.50DeepSeek V4 Prosame series$0.435 / $0.87Llama 3.2 3B Instructcheaper alternative$0.10 / $0.335Mistral Nemocheaper alternative$0.15 / $0.15DeepSeek Chatcheaper alternative$0.14 / $0.28Llama 3.2 1B Instructcheaper alternative$0.10 / $0.201
Price historyone sample accumulated per data sync
Input listOutput listMin blended