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DeepSeek V4 Flash vs Claude Opus 5

At a glance

Efficiency-optimized DeepSeek V4 at 284B total / 13B active for fast, high-throughput inference.

1.0M ctx$0.09/$0.19 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
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper99%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Specs
1.0M
Context
16K
Max output
Apr 2026
Released
1M
Context
128K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input98%$0.09/M tokens
Output99%$0.19/M tokens
Cache read96%$0.02/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 DeepSeek V4 FlashGo to model
Chat with Claude Opus 5Go to model
Frequently Asked Questions: DeepSeek V4 Flash vs Claude Opus 5▼

Which is better, DeepSeek V4 Flash or Claude Opus 5?

▼

Both DeepSeek V4 Flash 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, DeepSeek V4 Flash or Claude Opus 5?

▼

DeepSeek V4 Flash has a lower blended cost. DeepSeek V4 Flash: $0.09 input / $0.19 output. Claude Opus 5: $5.00 input / $25.00 output.

Which has a larger context window, DeepSeek V4 Flash or Claude Opus 5?

▼

DeepSeek V4 Flash has a larger context window: DeepSeek V4 Flash supports 1M tokens vs Claude Opus 5 at 1M tokens.

Do both DeepSeek V4 Flash and Claude Opus 5 support vision?

▼

Claude Opus 5 supports vision/image input, but DeepSeek V4 Flash does not.

What are the key differences between DeepSeek V4 Flash and Claude Opus 5?

▼

Key differences: DeepSeek V4 Flash is significantly cheaper; only Claude Opus 5 supports vision input. 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 DeepSeek V4 Flash and Claude Opus 5 for free on idapt.app to see which performs better for your specific needs.

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