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)

Kimi K3 vs Claude Opus 5

At a glance

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

Anthropic's flagship for demanding reasoning, coding, and long-horizon agentic work.

1M ctx$5.00/$25.00 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
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Cheaper40%
Reasoning & Knowledge
Graduate Science93.5%Expert-Level43.5%
Agentic
Terminal Tasks88.3%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Reasoning & Knowledge
Graduate Science—Expert-Level—
Agentic
Terminal Tasks—
Specs
1.0M
Context
16K
Max output
Jul 2026
Released
1M
Context
128K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input40%$3.00/M tokens
Output40%$15.00/M tokens
Cache read40%$0.30/M tokens
Live pricing, shown before you run
Input$5.00/M tokens
Output$25.00/M tokens
Cache read$0.50/M tokens
Cache write$6.25/M tokens
Web search$0.01/search
Chat with Kimi K3Go to model
Chat with Claude Opus 5Go to model
Frequently Asked Questions: Kimi K3 vs Claude Opus 5▼

Which is better, Kimi K3 or Claude Opus 5?

▼

Both Kimi K3 and Claude Opus 5 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, Kimi K3 or Claude Opus 5?

▼

Kimi K3 has a lower blended cost. Kimi K3: $3.00 input / $15.00 output. Claude Opus 5: $5.00 input / $25.00 output.

Which has a larger context window, Kimi K3 or Claude Opus 5?

▼

Kimi K3 has a larger context window: Kimi K3 supports 1M tokens vs Claude Opus 5 at 1M tokens.

Do both Kimi K3 and Claude Opus 5 support vision?

▼

Yes, both Kimi K3 and Claude Opus 5 support vision/image input.

What are the key differences between Kimi K3 and Claude Opus 5?

▼

Kimi K3 and Claude Opus 5 have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

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 Kimi K3 and Claude Opus 5 for free on idapt.app to see which performs better for your specific needs.

Open in App