Skip to main content
idapt
HomeCodeAI ModelsPricing
Sign inStart free
  • Home
  • Pricing
  • AI Models
  • Image models
  • Voice models
  • Video models
  • Rankings
  • New models
  • Model status
  • Multi-Model Chat
  • Agents
  • Computers
  • Drive
  • Automations
  • AI Gateway
  • All features →
  • LLM cost calculator
  • Token counter
  • All free tools →
  • Blog
  • Use cases
  • Comparisons
  • Best of
  • Benchmarks
  • Demos
  • Changelog
  • Help center
  • FAQ
  • Privacy
  • Compare all models
  • Support
  • idapt Code
  • Developers
  • Quickstarts
  • API reference
  • API pricing
  • CLI
  • MCP
  • Downloads
  • Desktop
  • Badges and embeds
© idapt[email protected]TermsPrivacy PolicyLegal noticeReport content
X (Twitter)

Claude Opus 4 vs Kimi K3

At a glance

World-class coding model with sustained performance on complex agentic tasks.

75200K ctx$15.00/$75.00 per M#40/92

MoonshotAI's 2.8T-parameter flagship for complex coding, knowledge work, and long-horizon agent runs.

1.0M ctx$3.00/$15.00 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI75.4
Reasoning & Knowledge
Graduate Science69.2%Expert-Level—
Math
Math Problems85.0%Competition Math42.2%Research Math4.5%
Coding
Real-World Coding70.7%Code Editing70.7%
Agentic
Terminal Tasks—Novel Reasoning1.3%
Reasoning
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Cheaper80%
Capability
Capability—
Reasoning & Knowledge
Graduate Science35%93.5%Expert-Level43.5%
Math
Math Problems—Competition Math—Research Math—
Coding
Real-World Coding—Code Editing—
Agentic
Terminal Tasks88.3%Novel Reasoning—
Specs
200K
Context
32K
Max output
May 2025
Released
1.0M
Context
16K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$15.00/M tokens
Output$75.00/M tokens
Cache read$1.50/M tokens
Cache write$18.75/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input80%$3.00/M tokens
Output80%$15.00/M tokens
Cache read80%$0.30/M tokens
Chat with Claude Opus 4Go to model
Chat with Kimi K3Go to model
Frequently Asked Questions: Claude Opus 4 vs Kimi K3▼

Which is better, Claude Opus 4 or Kimi K3?

▼

Both Claude Opus 4 and Kimi K3 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Claude Opus 4 or Kimi K3?

▼

Kimi K3 has a lower blended cost. Claude Opus 4: $15.00 input / $75.00 output. Kimi K3: $3.00 input / $15.00 output.

Which has a larger context window, Claude Opus 4 or Kimi K3?

▼

Kimi K3 has a larger context window: Claude Opus 4 supports 200K tokens vs Kimi K3 at 1M tokens.

Do both Claude Opus 4 and Kimi K3 support vision?

▼

Yes, both Claude Opus 4 and Kimi K3 support vision/image input.

What are the key differences between Claude Opus 4 and Kimi K3?

▼

Key differences: Kimi K3 is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Opus 4 and Kimi K3 for free on idapt.app to see which performs better for your specific needs.

Open in App