Kimi K2.7 Code vs Mercury 2

API pricing, context window and capabilities for Kimi K2.7 Code and Mercury 2, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

Kimi K2.7 Code wins on Terminal-Bench, on intelligence and on context window. Mercury 2 wins on price.

Price
Mercury 2
Terminal-Bench
Kimi K2.7 Code
Intelligence
Kimi K2.7 Code
Context window
Kimi K2.7 Code

Key takeaways

who wins on what, from the published numbers

Kimi K2.7 Code wins

  • Larger context window (262K vs 128K)
  • Higher max output (262K vs 50K)
  • More serving providers (16 vs 3)
  • Supports vision
  • Has reasoning mode

Mercury 2 wins

  • Cheaper input ($0.671 vs $0.25 /1M)
  • Cheaper output ($3.35 vs $0.75 /1M)
Cheaper overall
Mercury 2
$0.25 + $0.75 /1M
Larger context
Kimi K2.7 Code
262K
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.
Kimi K2.7 CodeMercury 2
Input $/1M$0.671OpenRouter routed quote $0.25via Inception best
Output $/1M$3.35OpenRouter routed quote $0.75via Inception best
Context window262K best128K
Max output262K best50K
Serving providers16 best3
DateReleased Jun 13, 2026 Released Feb 24, 2026

Benchmarks

Benchmark scores, side by side
Kimi K2.7 CodeMercury 2
Intelligence25.8 best13.8
Terminal-Bench67% best27%
GPQA Diamond90% best77%
Output speed64 t/s 554 t/s best
Latency (TTFT)2.75s best6.83s

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
Kimi K2.7 Code
via OpenRouter
$6.71
Mercury 2
via Inception
$2.00

Capabilities

feature support, side by side
FeatureKimi K2.7 CodeMercury 2
Vision✓—
Tool use✓✓
Reasoning✓—
Audio——
Prompt caching✓✓
Structured output✓✓
Web search——

Related comparisons

Frequently asked questions

Which is cheaper, Kimi K2.7 Code or Mercury 2?
Mercury 2 is cheaper for input ($0.671 vs $0.25 per 1M tokens) from Inception. Mercury 2 is cheaper for output ($3.35 vs $0.75 per 1M tokens) from Inception.
What is the context window difference between Kimi K2.7 Code and Mercury 2?
Kimi K2.7 Code has a 262K-token context window and Mercury 2 has 128K tokens, so Kimi K2.7 Code can take a larger prompt.
How do Kimi K2.7 Code and Mercury 2 compare on benchmarks?
On the tracked benchmarks, Kimi K2.7 Code leads on Terminal-Bench, and Kimi K2.7 Code leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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