Last refreshed 2026-06-15. Next refresh: weekly.
Why use DeepSeek V4 Flash on OpenRouter?
OpenRouter offers DeepSeek V4 Flash with pay-as-you-go pricing at $0.10/1M 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 V4 Flash across 5 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-v4-flashdeepseek/deepseek-v4-flashRequest example
deepseek/deepseek-v4-flash.Gotchas
- Use provider model ID "deepseek/deepseek-v4-flash", not the LLMReference slug "deepseek-v4-flash".
Compare DeepSeek V4 Flash Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| DeepSeek Platform | $0.14 | $0.28 |
| OpenRouter | $0.10 | $0.20 |
| Microsoft Foundry | — | — |
| Vercel AI Gateway | $0.14 | $0.28 |
| Novita AI | $0.14 | $0.28 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.10 |
| Output tokens | $0.20 |
Capabilities
About DeepSeek V4 Flash
DeepSeek V4 Flash is a 284B parameter (13B activated) Mixture-of-Experts language model with 1M-token context. Features a hybrid attention architecture combining Compressed Sparse Attention (CSA) and Heavily Compressed Attention (HCA) for efficient long-context inference. Supports thinking and non-thinking modes. Legacy API aliases deepseek-chat and deepseek-reasoner map to this model's non-thinking and thinking modes respectively. Pricing: $0.14/1M input, $0.28/1M output (cache hit: $0.0028/1M input). MIT licensed.
FAQ
What does DeepSeek V4 Flash cost on OpenRouter?
On OpenRouter, DeepSeek V4 Flash costs $0.0983 per 1M input tokens and $0.1966 per 1M output tokens.
What is the context window for DeepSeek V4 Flash on OpenRouter?
DeepSeek V4 Flash supports a 1.05m token context window on OpenRouter.
How does OpenRouter compare to other DeepSeek V4 Flash providers?
DeepSeek V4 Flash is available from 5 providers. The cheapest input pricing is $0.0983/1M tokens from OpenRouter.
What API model ID do I use for DeepSeek V4 Flash on OpenRouter?
Use the model ID deepseek/deepseek-v4-flash when calling OpenRouter's API.
Who created DeepSeek V4 Flash?
DeepSeek V4 Flash was created by DeepSeek as part of the DeepSeek V4 model family.
Is DeepSeek V4 Flash open source?
DeepSeek V4 Flash is open source under MIT according to the seed data.