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Claude Opus 5 vs DeepSeek V4 Flash

Compare Claude Opus 5 from Anthropic and DeepSeek V4 Flash from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

AnthropicClaude Opus 5DeepSeekDeepSeek V4 Flash
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Anthropic logo
Claude Opus 5
Anthropic · text, image, pdf → text

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis of charts and documents, complex office deliverables, and coordinating parallel subagents. The model maintains strong instruction following and tool use across extended tasks, while remaining effective at lower effort settings for workloads that prioritize latency and token efficiency.

Input$5 /M
Output$25 /M
Cache read$0.5 /M
Details
DeepSeek logo
DeepSeek V4 Flash
DeepSeek · text → text

(This model currently points to the older 0423 version; if you need to request the latest version, you can choose the model deepseek-v4-flash-0731)DeepSeek-V4 features an ultra-long context of one million characters and achieves leading performance domestically and in the open-source domain in agent capabilities, world knowledge, and reasoning.

Input$0.142 /M
Output$0.284 /M
Cache read$0.0284 /M
Details

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Claude Opus 5
DeepSeek V4 Flash
Input /M
$5
$0.142
Output /M
$25
$0.284
Cache read /M
$0.5
$0.0284
Context length
1,000,000
1,000,000
Max output
128,000
384,000
Time to First Token
1.4 s
1.1 s
Throughput
62.5 tok/s
85.0 tok/s
Modalities
textimagepdf
text
Supported Parameters
thinkingtoolsstructured outputslong contextweb
toolsfunction callingstructured outputsthinking
API Formats
chat_completions · claude_api · responses
chat_completions · claude_api
Released
July 24, 2026
April 24, 2026

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

claude-opus-5deepseek-v4-flash

Tokens / day

-

Requests / day

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Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

claude-opus-5deepseek-v4-flash

Throughput (tok/s)

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TTFT (s)

-

Uptime (%)

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LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
claude-opus-5deepseek-v4-flash
1380144015001560
Overall
14361493
Coding
14831533
Math
14261526
Hard prompts
14591518
Instruction following
14281498
Multi-turn
14521486
Creative writing
14081475
Longer query
14481507
Chinese
14731560
English
14451492

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

Estimate your monthly bill for the same workload on each model.

DeepSeek V4 Flash
$12.78 /mo
Claude Opus 5
$675 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Claude Opus 5, DeepSeek V4 Flash?

DeepSeek V4 Flash: $0.284/M output tokens; Claude Opus 5: $25/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Claude Opus 5: 1533; DeepSeek V4 Flash: 1483 (LMArena coding leaderboard).

Which responds faster?

DeepSeek V4 Flash: 1.1s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

Claude Opus 5 accepts 1,000,000 and DeepSeek V4 Flash accepts 1,000,000 input tokens. Maximum output per request is 128,000 tokens on Claude Opus 5 and 384,000 tokens on DeepSeek V4 Flash.

Which one generates tokens faster?

DeepSeek V4 Flash at 85.0 tok/s and Claude Opus 5 at 62.5 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Claude Opus 5 accepts text, image and PDF input and supports thinking, tool calling, structured outputs, long context and web search; DeepSeek V4 Flash accepts text input and supports tool calling, function calling, structured outputs and thinking.

Can I call Claude Opus 5 and DeepSeek V4 Flash with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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