Last refreshed 2026-05-21. 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 caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: deepseek/deepseek-v3.1-terminusdeepseek/deepseek-v3.1-terminusRequest example
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
About DeepSeek V3.1 Terminus
DeepSeek: DeepSeek V3.1 Terminus available via OpenRouter. Pricing: $0.21/1M input, $0.79/1M output.
FAQ
What does DeepSeek V3.1 Terminus cost on OpenRouter?
On OpenRouter, DeepSeek V3.1 Terminus costs $0.21 per 1M input tokens and $0.79 per 1M output tokens.
What is the context window for DeepSeek V3.1 Terminus on OpenRouter?
DeepSeek V3.1 Terminus supports a 164k token context window on OpenRouter.
How does OpenRouter compare to other DeepSeek V3.1 Terminus providers?
DeepSeek V3.1 Terminus is available from 4 providers. The cheapest input pricing is $0.21/1M tokens from OpenRouter.
What API model ID do I use for DeepSeek V3.1 Terminus on OpenRouter?
Use the model ID deepseek/deepseek-v3.1-terminus when calling OpenRouter's API.
Who created DeepSeek V3.1 Terminus?
DeepSeek V3.1 Terminus was created by DeepSeek as part of the DeepSeek model family.
Is DeepSeek V3.1 Terminus open source?
DeepSeek V3.1 Terminus is open source according to the seed data.