DeepSeek V4 Flash API pricing & setup
As of 2026-10-17, the cheapest DeepSeek V4 Flash channel is OpenRouter: $0.02268 input / $0.04536 output per 1M tokens (blended $0.028). Context 1M.
Retired · third-party hostedDeepSeek: V4 Flash is retired; the legacy name deepseek-v4-flash is still accepted but served and billed as DeepSeek-V4.1-Flash. This row is a third-party OpenRouter host, not an official price.Excluded from every “cheapest” ranking.api-docs.deepseek.com · checked2026-10-17 12:40 UTC+8
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Context: 1M · Max output: 944K · Modalities: text · Listed: 2026-04-24
Channel comparison (per 1M tokens)
| Channel | Blended | Input | Output | Cached | Access & payment (this channel) | Notes | Source |
|---|---|---|---|---|---|---|---|
| OpenRouterThird-party host $0.02268 / $0.04536 | $0.028 | $0.023 | $0.045 | $0.0045 | ✓CN direct✓Alipay✗ID✗Intl card conditions source2026-10-17 | Third-party host: Baidu (fp8) Licensed cloud alternative: Azure $0.21 / $0.56 | openrouter.ai 2026-10-17 |
Access & payment conditions are verified per channel (see the column above); unverified never counts as met.
How to use DeepSeek V4 Flash in Claude Code / Codex / OpenCode
Claude Code（Anthropic compatible）: ANTHROPIC_BASE_URL=https://api.deepseek.com/anthropic
OpenAI compatible base URL: https://api.deepseek.com · DEEPSEEK_API_KEY
Check the provider docs for exact model IDs. Source · Claude Code · Codex
Related comparisons
DeepSeek V4.1 Flash vs Qwen3.8 Flash · DeepSeek V4.1 Flash vs GPT-6 Luna · Doubao Seed 2.1 Pro vs DeepSeek V4 Pro (0813) · Compare any two →
Rankings: Cheapest LLM APIs · LLM APIs usable from mainland China · All DeepSeek models
Price history
- 2026-10-17 · OpenRouter · DeepSeek V4 Flash cached: $0.0182 → $0.004536 (OpenRouter basis change: model list price → Baidu (third-party host); not a provider price change)
- 2026-10-17 · OpenRouter · DeepSeek V4 Flash output: $0.182 → $0.04536 (OpenRouter basis change: model list price → Baidu (third-party host); not a provider price change)
- 2026-10-17 · OpenRouter · DeepSeek V4 Flash input: $0.091 → $0.02268 (OpenRouter basis change: model list price → Baidu (third-party host); not a provider price change)
- 2026-10-17 · OpenRouter · DeepSeek V4 Flash listed · $0.091 / $0.182
FAQ
How much does the DeepSeek V4 Flash API cost?
Cheapest channel (OpenRouter): $0.02268 input / $0.04536 output per 1M tokens, verified 2026-10-17.
Can I use DeepSeek V4 Flash from China?
OpenRouter: direct yes, Alipay yes, ID required no, overseas card no
Is DeepSeek V4 Flash free?
No free route or deal recorded for this model; pay-as-you-go.
What is DeepSeek V4 Flash's context window?
1M tokens