// AI Platform Drift
DeepSeek V4 Flash 0731 prompt pricing dropped 55.7%
OpenRouter model catalogue · published 2026-10-03 01:37 UTC
CORRECTED 2026-10-03 23:15 UTC — Correction — The original workload example overstated both dollar amounts by 1,000×. Using the rates quoted in this item, 100M prompt tokens per day cost $1.15 before and $0.51 after, excluding other charges. This verifies internal arithmetic only; historical source rate applicability and effective dates remain unverified.
Stood 21h 38m · cause arithmetic · every correction ↗
WHAT CHANGEDOpenRouter reduced prompt token pricing for deepseek/deepseek-v4-flash-0731 from $0.0115/M tokens to $0.0051/M tokens, effective now. Completion pricing remains $1.28/M tokens.
WHY IT MATTERSIf you are running this model at volume, your inference costs just dropped by more than half on the prompt side. A workload processing 100M prompt tokens per day now costs $510 instead of $1,150.
WHAT TO DOReforecast your October inference budget if this model accounts for material spend. Pull actual token counts from logs to calculate the new monthly run rate.
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: 0.0000000115 +pricing.prompt: 0.0000000051 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 pricing for a listed model decreased significantly, affecting cost calculations for users. |
| signals | price decreased · prompt token pricing reduced by 55.7% · specific numeric change in cost structure |
| suppression | — |
| triage model | anthropic/claude-haiku-4.5 ($0.00000) |
| writer model | anthropic/claude-sonnet-4.5 ($0.00000) |