Hy3 preview vs Kimi K3

API pricing, context window and capabilities for Hy3 preview and Kimi K3, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

Hy3 preview wins on price. Kimi K3 wins on intelligence and on context window. Benchmark data is unavailable for one or both models.

Price
Hy3 preview
Terminal-Bench
Not called
Intelligence
Kimi K3
Context window
Kimi K3

Key takeaways

who wins on what, from the published numbers

Hy3 preview wins

  • Cheaper input ($0.18 vs $0.70 /1M)
  • Cheaper output ($0.60 vs $12.50 /1M)

Kimi K3 wins

  • Larger context window (262K vs 1M)
  • Higher max output (236K vs 1M)
  • More serving providers (1 vs 14)
  • Supports vision
  • Supports structured output
Cheaper overall
Hy3 preview
$0.18 + $0.60 /1M
Larger context
Kimi K3
1M
More providers
Kimi K3
14 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.
Hy3 previewKimi K3
Input $/1M$0.18OpenRouter routed quote best$0.70OpenRouter routed quote
Output $/1M$0.60OpenRouter routed quote best$12.50via Sail
Context window262K 1M best
Max output236K 1M best
Serving providers1 14 best
DateReleased Apr 20, 2026 Released Jul 16, 2026

Benchmarks

Benchmark scores, side by side
Hy3 previewKimi K3
Intelligence22.7 43.6 best
Terminal-BenchNot available 85%
GPQA Diamond87% 94% best
Output speedNot available 45 t/s
Latency (TTFT)Not available 3.17s

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
Hy3 preview
via OpenRouter
$1.50
Kimi K3
via OpenRouter
$19

Capabilities

feature support, side by side
FeatureHy3 previewKimi K3
Vision—✓
Tool use✓✓
Reasoning✓✓
Audio——
Prompt caching✓✓
Structured output—✓
Web search——

Related comparisons

Frequently asked questions

Which is cheaper, Hy3 preview or Kimi K3?
Hy3 preview is cheaper for input ($0.18 vs $0.70 per 1M tokens) as an OpenRouter routed quote. Hy3 preview is cheaper for output ($0.60 vs $12.50 per 1M tokens) as an OpenRouter routed quote.
What is the context window difference between Hy3 preview and Kimi K3?
Hy3 preview has a 262K-token context window and Kimi K3 has 1M tokens, so Kimi K3 can take a larger prompt.
How do Hy3 preview and Kimi K3 compare on benchmarks?
On the tracked benchmarks, Kimi K3 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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