DeepSeek: DeepSeek V4 Flash 0731 vs Google: Gemini 3.1 Pro Preview (batch)
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0731 ranks #1 overall — ahead of Google: Gemini 3.1 Pro Preview (batch) at #48. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $1/1M for Google: Gemini 3.1 Pro Preview (batch).
DeepSeek: DeepSeek V4 Flash 0731 vs Google: Gemini 3.1 Pro Preview (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 #48 for Google: Gemini 3.1 Pro Preview (batch).
- Cheaper to read — $0.14 vs $1 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
- Cheaper to write — $0.28 vs $6 per 1M output tokens, the line item that decides generation-heavy costs.
- It is the newer model — released Jul 2026 against Feb 2026.
Choose Google: Gemini 3.1 Pro Preview (batch) if…
- It accepts audio, file, image, video input, which DeepSeek: DeepSeek V4 Flash 0731 does not.
Spec Comparison
| DeepSeek: DeepSeek V4 Flash 0731 | Google: Gemini 3.1 Pro Preview (batch) | |
|---|---|---|
| Author | deepseek | |
| Input price (per 1M tokens) | $0.14 | $1 |
| Output price (per 1M tokens) | $0.28 | $6 |
| Context window | 1M | 1M |
| Input modalities | text | audio, file, image, text, video |
| Output modalities | text | text |
| AA Intelligence | 51.8 | — |
| AA Coding | 69.1 | — |
| AA Agentic | 48.4 | — |
| Released | Jul 2026 | Feb 2026 |
What DeepSeek: DeepSeek V4 Flash 0731 and Google: Gemini 3.1 Pro Preview (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 3.1 Pro Preview (batch) costs $1.60.
Flip the shape — 100K in, 1M out — and it becomes $0.29 for DeepSeek: DeepSeek V4 Flash 0731 versus $6.10 for Google: Gemini 3.1 Pro Preview (batch).
Both figures are the published per-token rates multiplied out; caching and batch discounts are not included.
Usage Rank by Task
| Task | DeepSeek: DeepSeek V4 Flash 0731 | Google: Gemini 3.1 Pro Preview (batch) |
|---|---|---|
| Overall | #1 | #48 |
| 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 3.1 Pro Preview (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 3.1 Pro Preview (batch)
Built by google · released Feb 2026 · 1M-token context
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...
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FAQ
Which is better, DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.1 Pro Preview (batch)?
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0731 ranks #1 overall — ahead of Google: Gemini 3.1 Pro Preview (batch) at #48. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $1/1M for Google: Gemini 3.1 Pro Preview (batch).
Which is cheaper, DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.1 Pro Preview (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 3.1 Pro Preview (batch) $6.
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.