All modelsCalculate what your real prompts cost on DeepSeek V3.1 Terminus
DeepSeek V3.1 Terminus
open sourceDeepSeek model, released 22 Sept 2025.
$0.27
per 1M input tokens
$1.00
per 1M output tokens
—
per 1M cached-read tokens
Price history
input $/1M output $/1M7 Jul 2026 → 3 Oct 2026
Specifications
- Lab
- DeepSeek
- Released
- 22 Sept 2025
- Context window
- 164k tokens
- Max output
- 147k tokens
- Input modalities
- text
- Output modalities
- text
- Knowledge cutoff
- 2025-03-31
- Open source
- Yes
Benchmarks
| Benchmark | Category | Score | As of |
|---|---|---|---|
| LMArena (Chatbot Arena) | coding | 1407.4 (1386.8–1427.9) | 13 Sept 2026 |
| LMArena (Chatbot Arena) | overall | 1416.9 (1407.2–1426.6) | 13 Sept 2026 |
LMArena (Chatbot Arena) data © their authors, CC-BY-4.0
Frequently asked questions
How much does DeepSeek V3.1 Terminus cost?
DeepSeek V3.1 Terminus costs $0.27 per 1M input tokens and $1.00 per 1M output tokens (list price, updated every 6 hours).
What is DeepSeek V3.1 Terminus's context window?
DeepSeek V3.1 Terminus supports a 164k-token context window with up to 147k output tokens.
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