How much does DeepSeek: DeepSeek V3.1 Terminus cost per 1M tokens?

DeepSeek: DeepSeek V3.1 Terminus costs $0.270 per 1M input tokens and $1.00 per 1M output tokens on the standard tier. Cached input is $0.135 per 1M.

What is DeepSeek: DeepSeek V3.1 Terminus's context window?

DeepSeek: DeepSeek V3.1 Terminus accepts up to 163,840 tokens in a single request, and can return up to 32,768 output tokens.

Is there a cheaper OpenRouter model than DeepSeek: DeepSeek V3.1 Terminus?

Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.270 for DeepSeek: DeepSeek V3.1 Terminus, with a 8,192 token context window.

Where does this DeepSeek: DeepSeek V3.1 Terminus price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

DeepSeek: DeepSeek V3.1 Terminus pricing

DeepSeek-V3.1 Terminus is an update to DeepSeek V3.1 that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the… DeepSeek: DeepSeek V3.1 Terminus from OpenRouter costs $0.270 per 1M input tokens and $1.00 per 1M output tokens. Cached input is $0.135 per 1M. Context window 163,840 tokens.

API id deepseek/deepseek-v3.1-terminus · OpenRouter · source · updated 2026-09-25 · general-purpose

$0.270

Input / 1M tokens

$1.00

Output / 1M tokens

$0.135

Cached input / 1M

164K

Context window

DeepSeek: DeepSeek V3.1 Terminus specifications

Provider: OpenRouter
API id: deepseek/deepseek-v3.1-terminus
Model type: general-purpose
Context window: 164K tokens
Max output: 33K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

DeepSeek V3.1 Terminus across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

Provider	Input /1M	Cached /1M	Output /1M	1M in + 1M out	vs vendor
DeepSeekVendorCheapest	$0.270	$0.135	$1.00	$1.27	—
OpenRouterHostviewing	$0.270	$0.135	$1.00	$1.27	—

What DeepSeek: DeepSeek V3.1 Terminus costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0008
Document summary	50,000	2,000	$0.02
1M tokens in, 200K out	1,000,000	200,000	$0.47

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does DeepSeek: DeepSeek V3.1 Terminus cost per 1M tokens?: DeepSeek: DeepSeek V3.1 Terminus costs $0.270 per 1M input tokens and $1.00 per 1M output tokens on the standard tier. Cached input is $0.135 per 1M.
What is DeepSeek: DeepSeek V3.1 Terminus's context window?: DeepSeek: DeepSeek V3.1 Terminus accepts up to 163,840 tokens in a single request, and can return up to 32,768 output tokens.
Is there a cheaper OpenRouter model than DeepSeek: DeepSeek V3.1 Terminus?: Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.270 for DeepSeek: DeepSeek V3.1 Terminus, with a 8,192 token context window.
Where does this DeepSeek: DeepSeek V3.1 Terminus price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Compare DeepSeek: DeepSeek V3.1 Terminus with another model →

Other OpenRouter models

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