ModelsDeepSeek
DeepSeek V3.1 Terminus
Context
163.8K
tokens
Released
Sep 22, 2025
on OpenRouter
Pricing
Price per million tokens
Input $/MTok
$0.27
OpenRouter · Aug 21, 2026
Output $/MTok
$1.005.3%
OpenRouter · Aug 21, 2026
Cache read $/MTok
$0.14
OpenRouter
| Source | Tracked slug | In $/MTok | Out $/MTok | Cache read | Cache write | Context | Effective | Last Δ (in) |
|---|---|---|---|---|---|---|---|---|
| OpenRouter | deepseek/deepseek-v3.1-terminus | $0.27 | $1.00 | $0.14 | — | 163.8K | Aug 21, 2026 | — |
| models.dev | siliconflow-cn/Pro/deepseek-ai/DeepSeek-V3.1-Terminus | $0.27 | $1.00 | — | — | 164K | Aug 21, 2026 | 8% |
latest tracked price per source · Δ = most recent input-price move within that source
2 sources tracking
Input $/MTok
Output $/MTok
per-source step lines · $/MTok
history since Jul 8, 2026
Specs
Context & availability
| Provider | DeepSeek |
|---|---|
| Context window | 163.8K tokens |
| Listed on OpenRouter | Sep 22, 2025 |
| Tracked price sources | OpenRouter · models.dev |
| Hugging Face | deepseek-ai/DeepSeek-V3.1-Terminus |
| OpenRouter slugs | deepseek/deepseek-v3.1-terminus |
source: OpenRouter model catalog + tracked price feeds
id: deepseek-v3-1-terminus
Usage
Share of OpenRouter tokens
90-day daily
usage share pending — this model isn't in the tracked OpenRouter model rankings yet
Benchmarks
Benchmark results
| Benchmark | Configuration | Score | Date | Source |
|---|---|---|---|---|
| AA Agentic Index | deepseek/deepseek-v3.1-terminus | 18.1index | — | or-embedded-aa |
| AA Coding Index | deepseek/deepseek-v3.1-terminus | 43.5index | — | or-embedded-aa |
| AA Intelligence Index | deepseek/deepseek-v3.1-terminus | 30.4index | — | or-embedded-aa |
scores as published by each benchmark; configurations differ — compare within a row's benchmark only
Alternatives
Similar models
| # | Model | Tokens/day | 7d Δ | Head-to-head |
|---|---|---|---|---|
| 1 | DeepSeek V4 FlashDeepSeek | 2.7T | 23.9% | vs DeepSeek V3.1 Terminus |
| 2 | Hy3Tencent | 1.3T | 17.8% | vs DeepSeek V3.1 Terminus |
| 5 | Nemotron 3 UltraNVIDIA | 733B | 45.1% | vs DeepSeek V3.1 Terminus |
| 7 | GLM 5.2Z.ai | 533B | 4.2% | vs DeepSeek V3.1 Terminus |
ranked by OpenRouter usage-rank proximity
snapshot Aug 20, 2026
FAQ
DeepSeek V3.1 Terminus FAQ
- How much does DeepSeek V3.1 Terminus cost per token?
- DeepSeek V3.1 Terminus is priced at $0.27 per million input tokens and $1.00 per million output tokens, per OpenRouter as of Aug 21, 2026.
- What is DeepSeek V3.1 Terminus's context window?
- DeepSeek V3.1 Terminus supports a context window of up to 163.8K tokens, per DeepSeek.
- What are the alternatives to DeepSeek V3.1 Terminus?
- By OpenRouter usage, comparable models include DeepSeek V4 Flash, Hy3, and Nemotron 3 Ultra. Side-by-side comparisons are linked in the alternatives table.
Alerts
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