Standard Compute
Model comparison 2026

DeepSeek V4.1 Flash vs Gemini 3.1 Pro

DeepSeek V4.1 Flash
DeepSeek · Budget · Open weights
$0.22/1M · 1.0M ctx
Gemini 3.1 Pro
Google · Frontier · Proprietary
$5.00/1M · 1.0M ctx

Community vote

Pick a winner in each dimension. You can change your vote any time.

Output Quality
Correctness and depth of what it produces
Agentic Ability
Tool calls, instruction-following, and multi-step tasks
Speed
Tokens per second and time-to-first-token
Value for money
How much capability you get per dollar
Reliability
Consistent results: fewer refusals, loops and format breaks

Specs and pricing side by side

Spec
DeepSeek V4.1 Flash
Gemini 3.1 Pro
Maker
DeepSeek
Google
Blended price / 1M
$0.22
$5.00
Input / output
$0.04 in · $0.63 out / 1M tokens
$2.00 in · $12 out / 1M tokens
Context window
1.0M
1.0M
Open weights
Yes
No
Tool use
Yes
Yes
Reasoning
Yes
Yes
Output Quality
8.8
9.2
Agentic Ability
8.8
9.0
Speed
9.4
7.5
Value for money
10.0
8.1
Reliability
8.8
8.8

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: DeepSeek V4.1 Flash or Gemini 3.1 Pro?

Updated 2026-10-13

Choose DeepSeek V4.1 Flash if you want cheap, high-volume open-weight agent work. Choose Gemini 3.1 Pro if you want huge-context and multimodal work, and Gemini CLI users.

Editorially it's close: each model leads in 2 of our five dimensions. On price, DeepSeek V4.1 Flash runs about $0.22 per 1M tokens (blended) and is open-weight; Gemini 3.1 Pro is about $5.00 and proprietary.

Where DeepSeek V4.1 Flash falls short
  • Well below the frontier on long agentic tasks
  • DeepSeek API prices differ between peak and off-peak hours
Full DeepSeek V4.1 Flash breakdown →
Where Gemini 3.1 Pro falls short
  • Tool use a touch behind Claude/GPT on some agents
  • Preview-tier stability varies
Full Gemini 3.1 Pro breakdown →

The agent matters as much as the model. Compare AI agents →

Every model on this page is included with Standard Compute

Standard Compute

Current frontier models Claude Opus 5.5 · Claude Sonnet 5.5

Your agents never stop.
Your bill never grows.

Frontier models when it counts. Efficient models when it doesn’t. The most intelligence per dollar. One flat bill.

Plans from $19/mo · cancel anytime · 7-day fair refund

7-day fair refund No credit card needed Billing by Stripe1,800+ agent users

Related comparisons