Gemini 3.1 Pro Preview vs Kimi K2.7 Code

API pricing, context window and capabilities for Gemini 3.1 Pro Preview and Kimi K2.7 Code, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

Gemini 3.1 Pro Preview wins on Terminal-Bench, on intelligence and on context window. Kimi K2.7 Code wins on price.

Price
Kimi K2.7 Code
Terminal-Bench
Gemini 3.1 Pro Preview
Intelligence
Gemini 3.1 Pro Preview
Context window
Gemini 3.1 Pro Preview

Key takeaways

who wins on what, from the published numbers

Gemini 3.1 Pro Preview wins

  • Larger context window (1M vs 262K)
  • Supports audio
  • Has web search

Kimi K2.7 Code wins

  • Cheaper input ($2.00 vs $0.671 /1M)
  • Cheaper output ($12.00 vs $3.35 /1M)
  • Higher max output (66K vs 262K)
  • More serving providers (6 vs 16)
Cheaper overall
Kimi K2.7 Code
$0.671 + $3.35 /1M
Larger context
Gemini 3.1 Pro Preview
1M
More providers
Kimi K2.7 Code
16 providers

Pricing & specs

cheapest listed route · per 1M tokens
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
Gemini 3.1 Pro PreviewKimi K2.7 Code
Input $/1M$2.00via Google $0.671OpenRouter routed quote best
Output $/1M$12.00via Google $3.35OpenRouter routed quote best
Context window1M best262K
Max output66K 262K best
Serving providers6 16 best
DateReleased Feb 19, 2026 Released Jun 13, 2026

Benchmarks

Benchmark scores, side by side
Gemini 3.1 Pro PreviewKimi K2.7 Code
Intelligence29.7 best25.8
Terminal-Bench74% best67%
GPQA Diamond94% best90%
Output speed140 t/s best64 t/s
Latency (TTFT)26.52s 2.75s best

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
Gemini 3.1 Pro Preview
via Google
$22
Kimi K2.7 Code
via OpenRouter
$6.71

Capabilities

feature support, side by side
FeatureGemini 3.1 Pro PreviewKimi K2.7 Code
Vision✓✓
Tool use✓✓
Reasoning✓✓
Audio✓—
Prompt caching✓✓
Structured output✓✓
Web search✓—

Related comparisons

Frequently asked questions

Which is cheaper, Gemini 3.1 Pro Preview or Kimi K2.7 Code?
Kimi K2.7 Code is cheaper for input ($2.00 vs $0.671 per 1M tokens) as an OpenRouter routed quote, while Moonshot lists it at $0.95 per 1M input. Kimi K2.7 Code is cheaper for output ($12.00 vs $3.35 per 1M tokens) as an OpenRouter routed quote, while Moonshot lists it at $4.00 per 1M output.
What is the context window difference between Gemini 3.1 Pro Preview and Kimi K2.7 Code?
Gemini 3.1 Pro Preview has a 1M-token context window and Kimi K2.7 Code has 262K tokens, so Gemini 3.1 Pro Preview can take a larger prompt.
How do Gemini 3.1 Pro Preview and Kimi K2.7 Code compare on benchmarks?
On the tracked benchmarks, Gemini 3.1 Pro Preview leads on Terminal-Bench, and Gemini 3.1 Pro Preview leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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