# DeepSeek V3.1 Terminus

> Source: <https://tokenstead.ai/models/deepseek-v3-1-terminus>
> Published: 2026-07-09 14:12:02+00:00

# DeepSeek V3.1 Terminus

MoE workstation685B total, ~37B active per token (MoE) - same backbone as DeepSeek V3. Instruct/agent-tuned variant of V3.1-Base: improves language consistency (less mixed Chinese-English) and adds Code Agent + Search Agent tool-use. FP8 quantization. Open weights under MIT.

coding
reasoning
chat

- 685.0B
- 128k
- mit
- Sep 2025

## Scores

Coding

80

Reasoning

85

General

82

PRICE HISTORY

## Inference cost over time

Data accumulates from the first daily sync - longer ranges populate over time. Prices come from OpenRouter snapshots, not a historical API.

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