Model Comparison 2026

Gemini 3.1 Pro vs Kimi K2.6

Gemini 3.1 Pro
Google · Frontier · Proprietary
$5.00/1M · 1.0M ctx
Kimi K2.6
Moonshot AI · Frontier · Open weights
$1.49/1M · 262K ctx

Community Vote

Pick a winner in each dimension — change your vote anytime.

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 $
How much capability you get per dollar
Reliability
Consistent results — fewer refusals, loops, and format breaks

Specs & Pricing, Side by Side

Spec
Gemini 3.1 Pro
Kimi K2.6
Maker
Google
Moonshot AI
Blended price / 1M
$5.00
$1.49
Input / output
$2.00 in · $12 out / 1M tokens
$0.66 in · $3.41 out / 1M tokens
Context window
1.0M
262K
Open weights
No
Yes
Tool use
Yes
Yes
Reasoning
Yes
Yes
Output Quality
9.2
8.6
Agentic Ability
9.0
8.8
Speed
7.5
7.6
Value for $
8.1
9.2
Reliability
8.8
9.0

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

Verdict: Gemini 3.1 Pro or Kimi K2.6?

Updated 2026-06-22

Choose Gemini 3.1 Pro if you want huge-context and multimodal work, and Gemini CLI users. Choose Kimi K2.6 if you want a flagship-feel open-weight generalist.

In our editorial scoring, Kimi K2.6 leads in 3 of five dimensions (speed, value for $ and reliability), while Gemini 3.1 Pro leads in 2. On price, Gemini 3.1 Pro runs about $5.00 per 1M tokens (blended) and is proprietary; Kimi K2.6 is about $1.49 and open-weight.

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 →
Where Kimi K2.6 falls short
  • A step behind the closed flagships
  • Pricier than the cheapest open models
Full Kimi K2.6 breakdown →

The model is half the story — the agent is the other half

The model picks the moves; the agent runs the loop, the tools, and the guardrails. Once you've chosen a model, see which agent gets the most out of it.

Compare AI agents →

Related comparisons

Opus 4.8 vs Gemini 3.1 ProOpus 4.8 vs Kimi K2.6Gemini 3.1 Pro vs GPT-5.5GPT-5.5 vs Kimi K2.6Gemini 3.1 Pro vs GLM 5.2Gemini 3.1 Pro vs Qwen3.7 MaxDeepSeek V4 Pro vs Gemini 3.1 ProGemini 3.1 Pro vs Grok 4.3