// AI Platform Drift
DeepSeek V4 Flash 0731 prompt pricing drops 37% on OpenRouter
OpenRouter model catalogue · published 2026-10-01 12:37 UTC
CORRECTED 2026-10-02 17:58 UTC — [CORRECTION · WHY IT MATTERS] Original: “A system processing 100M prompt tokens monthly saves $630.” Fact: Using the quoted or captured rates, 100M prompt tokens per month saves $0.63/month, not $630. Vendor rate applicability remains unverified.
Stood 29h 21m · cause arithmetic · every correction ↗
Captured arithmetic only; vendor rate validity, applicability and effective conditions remain unverified.
WHAT CHANGEDOpenRouter reduced prompt token pricing for deepseek/deepseek-v4-flash-0731 from $0.0171/M tokens to $0.0108/M tokens, effective now. Completion pricing remains $1.28/M tokens.
WHY IT MATTERSIf you are routing prompt-heavy workloads through this model, your per-request cost just decreased by more than a third. A system processing 100M prompt tokens monthly saves $630.
WHAT TO DOReforecast your October AI spend if this model accounts for material volume. If you capped usage or switched providers due to cost, re-evaluate whether those constraints still apply.
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-0731 name: DeepSeek: DeepSeek V4 Flash 0731 -pricing.prompt: 0.0000000171 +pricing.prompt: 0.0000000108 pricing.completion: 0.00000128 context_length: 1048576 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 | Prompt token price dropped significantly. Teams budgeting or comparing costs need to know. |
| signals | price decreased · prompt token pricing reduced by ~37% · model pricing is a direct cost driver for engineering teams |
| suppression | — |
| triage model | anthropic/claude-haiku-4.5 ($0.00000) |
| writer model | anthropic/claude-sonnet-4.5 ($0.00000) |