deepseek-v3.1-terminus

by DeepSeekChat

DeepSeek chat model for instruction following, coding, and analysis

Context
164K tokens
Max output
65,536 tokens
Parameters
685B total, 37B active
Released
2025-09-22
Weights
Open
Licence
mit

FeedWeights on Hugging Face

deepseek/deepseek-v3-1-terminus · also seen as siliconflow/deepseek-v3.1-terminus, deepseek-ai/DeepSeek-V3.1-Terminus, deepseek-ai/DeepSeek-V3.1-Terminus:thinking, Pro/deepseek-ai/DeepSeek-V3.1-Terminus, +1 more

Specifications

Full facts as recorded, incl. what is unknown.

Released
2025-09-22
Weights
Opennot gated
License
mit
Input
Text
Output
Text
Context window
164,000 max across endpoints
Max output
65,536
Providers
8 + 6 gateways, not counted as providers
Epoch Capabilities Index
not evaluated
Direct price range
$0.27–$0.56 in · $1.00–$1.68 out per 1M tokens · 7 of 8 providers have a comparable price
More details
Last updated
2025-11-25
Knowledge cutoff
2025-09
Weights link
Hugging Face · deepseek-ai/DeepSeek-V3.1-Terminus
Parameters
685B total, 37B active
Base model
deepseek-ai/DeepSeek-V3.1-Base
Developer country
China
Training compute
3.6×10²⁴ FLOP

Capabilities

Across all endpoints: supported if any endpoint supports it.

  • Tool calling
  • Parallel tools
  • Structured output
  • Reasoning
  • Image input
  • PDF input
  • Audio input
  • Audio outputunknown
  • Video input
  • Prompt cachingunknown
  • Web searchunknown
  • Computer useunknown
  • System messages
  • Assistant prefillunknown
  • Temperature
  • Streamingunknown
  • Attachments

Endpoints

One row per provider and variant; gateways are listed separately.

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Price history

Atom feed

No change since 19 Oct 2026. The cheapest direct price has been $0.27 in / $1.00 out per 1M tokens at Deep Infra on every data refresh since then.

Tracked from 19 Oct 2026, the earliest refresh this model's headline price can be rebuilt from. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON

Cost calculator

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Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).

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Heads up: prices are indicative list rates scraped from provider pricing pages; verify with the provider before relying on them. Report incorrect data for this model