Last refreshed 2026-06-15. Next refresh: weekly.
Why use DeepSeek V3.1 Terminus on OpenRouter?
OpenRouter offers DeepSeek V3.1 Terminus with pay-as-you-go pricing at $0.21/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare DeepSeek V3.1 Terminus across 4 providers to find the best fit for your use caseInput / 1M
$0.21
Output / 1M
$0.79
Cache
Not sourced
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: deepseek/deepseek-v3.1-terminusModel ID
deepseek/deepseek-v3.1-terminusRequest example
Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID
deepseek/deepseek-v3.1-terminus.Gotchas
- Use provider model ID "deepseek/deepseek-v3.1-terminus", not the LLMReference slug "deepseek-v3.1-terminus".
Compare DeepSeek V3.1 Terminus Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| NVIDIA NIM | — | — |
| OpenRouter | $0.21 | $0.79 |
| Vercel AI Gateway | $0.27 | $1.00 |
| Novita AI | $0.27 | $1.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.21 |
| Output tokens | $0.79 |
Capabilities
Structured Outputs
About DeepSeek V3.1 Terminus
DeepSeek: DeepSeek V3.1 Terminus available via OpenRouter. Pricing: $0.21/1M input, $0.79/1M output.
Get Started
Model Specs
Released2025-09-22
Parameters671B total, 37B active (MoE)
Context164k
ArchitectureDecoder Only