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Flash — fastest and cheapest, lighter reasoningOpen Weights
DeepSeek V4.1 Flash (batch) Pricing
DeepSeek · deepseek-deepseek-v4-1-flash-batch
Input / 1M tokens
$0.112
Output / 1M tokens
$0.336
Context window
1,048,576 tokens
≈ 1,398 pages of text
Max output
131,072 tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0003
1,000 requests / month$0.2688/mo10,000 requests / month$2.69/mo100,000 requests / month$26.88/moEstimate your own workloadOpens the calculator with DeepSeek V4.1 Flash (batch) preloaded — adjust volume and token counts there.
Price history
Only one price point recorded so far.
The staircase chart appears once a price change is detected.
What it excels at
Handles large-batch text and vision workloads with 1M context at very low per-token cost. Open weights enable custom deployment for high-volume pipelines.
The business tradeoff
Flash positioning implies narrower reasoning depth than full DeepSeek releases. Output-token pricing is three times input; self-hosting shifts all latency and scaling responsibility to the operator.
Cheaper from DeepSeek
Head-to-head
Vendor list rates, as of Sep 22, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.