// AI Platform Drift
DeepSeek V4 Flash pricing reduced 7% prompt, 24% completion
OpenRouter model catalogue · published 2026-09-26 03:56 UTC
CORRECTED 2026-10-02 17:58 UTC — [CORRECTION · WHY IT MATTERS] Original: “dropped by roughly 20-25% depending on your prompt-to-completion ratio” Fact: At unchanged token volumes, the feasible saving is 6.6667% (prompt-only) to 23.8095% (completion-only). A 25% saving is impossible; use the actual prompt/completion mix.
Stood 158h 2m · cause arithmetic · every correction ↗
Captured arithmetic only; vendor rate validity, applicability and effective conditions remain unverified.
WHAT CHANGEDOpenRouter lowered pricing for deepseek/deepseek-v4-flash-latest from $0.0000000225 to $0.000000021 per prompt token (7% decrease) and from $0.00000042 to $0.00000032 per completion token (24% decrease), effective 26 September 2026.
WHY IT MATTERSIf you are running this model at volume, your inference costs just dropped by roughly 20-25% depending on your prompt-to-completion ratio. Existing budgets and cost projections are now overstated.
WHAT TO DORerun your cost forecast with the new rates and update whoever owns the AI spend number. If you pinned pricing assumptions in a business case or contract, verify those documents still reflect reality.
Model-reported confidence 95% (not measured accuracy)
Primary source ↗
written by anthropic/claude-sonnet-4.5
Show the reasoning — raw diff, triage verdict, confidence
RAW DIFF
id: ~deepseek/deepseek-v4-flash-latest name: DeepSeek: DeepSeek V4 Flash Latest -pricing.prompt: 0.0000000225 -pricing.completion: 0.00000042 +pricing.prompt: 0.000000021 +pricing.completion: 0.00000032 context_length: 1310720 top_provider.max_completion_tokens: 943718
HOW IT WAS JUDGED
Triage signals below are model-reported assertions, preserved verbatim; they are not independent arithmetic verification.
| triage verdict | MATERIAL at 0.95, needed 0.5 |
|---|---|
| triage reasoning | Price reductions on an active model affect cost planning and vendor comparison for teams building on this platform. |
| signals | pricing.prompt decreased ~7% · pricing.completion decreased ~24% · both price changes on active model |
| suppression | — |
| triage model | anthropic/claude-haiku-4.5 ($0.00000) |
| writer model | anthropic/claude-sonnet-4.5 ($0.00000) |