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DeepSeek: DeepSeek V4 Flash 0731 vs Google: Gemini 3.5 Flash Lite (batch)

Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0731 ranks #1 overall — ahead of Google: Gemini 3.5 Flash Lite (batch) at #41. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $0.15/1M for Google: Gemini 3.5 Flash Lite (batch).

DeepSeek: DeepSeek V4 Flash 0731 vs Google: Gemini 3.5 Flash Lite (batch): which should you use?

Choose DeepSeek: DeepSeek V4 Flash 0731 if…

  • It sees more real traffic — #1 overall on OpenRouter's weekly ranking, against #41 for Google: Gemini 3.5 Flash Lite (batch).
  • Cheaper to read — $0.14 vs $0.15 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
  • Cheaper to write — $0.28 vs $1.25 per 1M output tokens, the line item that decides generation-heavy costs.
  • It is the newer model — released Jul 2026 against Jul 2026.

Choose Google: Gemini 3.5 Flash Lite (batch) if…

  • It accepts image, video, file, audio input, which DeepSeek: DeepSeek V4 Flash 0731 does not.

Spec Comparison

DeepSeek: DeepSeek V4 Flash 0731Google: Gemini 3.5 Flash Lite (batch)
Authordeepseekgoogle
Input price (per 1M tokens)$0.14$0.15
Output price (per 1M tokens)$0.28$1.25
Context window1M1M
Input modalitiestexttext, image, video, file, audio
Output modalitiestexttext
AA Intelligence51.8
AA Coding69.1
AA Agentic48.4
ReleasedJul 2026Jul 2026

What DeepSeek: DeepSeek V4 Flash 0731 and Google: Gemini 3.5 Flash Lite (batch) actually cost to run

On a read-heavy job — 1M tokens in, 100K out — DeepSeek: DeepSeek V4 Flash 0731 costs $0.17 and Google: Gemini 3.5 Flash Lite (batch) costs $0.28.

Flip the shape — 100K in, 1M out — and it becomes $0.29 for DeepSeek: DeepSeek V4 Flash 0731 versus $1.26 for Google: Gemini 3.5 Flash Lite (batch).

Both figures are the published per-token rates multiplied out; caching and batch discounts are not included.

Usage Rank by Task

TaskDeepSeek: DeepSeek V4 Flash 0731Google: Gemini 3.5 Flash Lite (batch)
Overall#1#41
Memory Extraction#6
Multi-step Planning#2
Tool Dispatch#2
Web Search#4
Agent Workflows#5
Classification & Tagging#9
Debugging#3
DevOps Config#2
File Read/Write#3
Frontend UI#2
Code Implementation#3
Repo Analysis#3
Code Review & Security#3
Shell Execution#6

About DeepSeek: DeepSeek V4 Flash 0731 and Google: Gemini 3.5 Flash Lite (batch)

DeepSeek: DeepSeek V4 Flash 0731

Built by deepseek · released Jul 2026 · 1M-token context

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....

Google: Gemini 3.5 Flash Lite (batch)

Built by google · released Jul 2026 · 1M-token context

Gemini 3.5 Flash Lite is a high-efficiency model from Google with upgraded agentic capabilities. It is suited for subagents that execute focused tasks within complex, multi-agent workflows.

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FAQ

Which is better, DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.5 Flash Lite (batch)?

Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0731 ranks #1 overall — ahead of Google: Gemini 3.5 Flash Lite (batch) at #41. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $0.15/1M for Google: Gemini 3.5 Flash Lite (batch).

Which is cheaper, DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.5 Flash Lite (batch)?

DeepSeek: DeepSeek V4 Flash 0731 is cheaper at $0.14 per 1M input tokens. Output pricing: DeepSeek: DeepSeek V4 Flash 0731 $0.28, Google: Gemini 3.5 Flash Lite (batch) $1.25.

Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.