Access frontier DeepSeek models through a single OpenAI-compatible endpoint. Pay-as-you-go in USD — no subscriptions, no minimums, no markup games.
Built for indie developers and small teams who want great models without juggling five vendor accounts.
DeepSeek-V4 Flash, V4 Pro and Vision — routed through a single /v1/chat/completions URL. Switch models by changing one string.
Per-token pricing in USD, visible spend on every key. Set hard quotas per token so a runaway script never surprises you.
Every key carries its own budget, expiry and model allow-list. Revoke instantly from the dashboard — no support tickets.
First-class SSE streaming support, long-context friendly timeouts and multi-provider failover behind the scenes.
Live dashboard of requests, tokens and spend per key. Export what you need for your own billing.
Works with the OpenAI SDK, LangChain, LlamaIndex, curl — anything that speaks the OpenAI wire format.
Per-million-token pricing. No subscriptions, no tiers, no minimum spend.
| Model | Context | Input / 1M | Output / 1M | Highlights |
|---|---|---|---|---|
| deepseek-v4-flash | 1M | $0.66 | $1.98 | Best price-to-quality ratio, general chat & code popular |
| deepseek-v4-pro | 1M | $1.98 | $5.94 | Flagship quality, thinking mode, long docs |
| deepseek-v4-flash-vision-exp | 1M | $0.66 | $1.98 | Image understanding, same low token rates |
Also available: deepseek-chat and deepseek-reasoner as drop-in aliases of v4-flash. All models support thinking mode, tool calls, JSON output and the Responses API. Rates are final — what you see is what you pay. Unused credit is refundable within 7 days (see Terms).
If you've ever called the OpenAI API, you already know how to use TryFlashAI.
Sign up with email. Start on free trial credit — enough for thousands of tokens of testing.
Dashboard → Tokens → Add. Set a spend quota if you like. Copy the sk-... key.
Swap the base URL and key. That's the whole migration.
Three things: one consolidated invoice in USD, one key for every model, and quota controls per key. If you only ever need a single vendor's API, going direct is fine — this is for people who don't want five accounts, five payment methods and five dashboards.
Traffic is routed through monitored channels with automatic failover. If a provider has an outage, affected models are disabled until recovered and your requests fail fast — you're never billed for failed calls.
Unused credit is refundable within 7 days of purchase. Consumed tokens are non-refundable, since we've already paid the upstream provider for them.
No. We store request metadata (tokens, model, timestamps) for billing and abuse prevention for up to 30 days. Message content is not persisted beyond what's required for streaming the response.
Developers and teams located outside the Chinese mainland who want metered access to leading open-weight models. You are responsible for ensuring your use complies with the laws of your own jurisdiction.