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Claude Opus 5 vs Gemini 3.6 Flash

Compare Claude Opus 5 from Anthropic and Gemini 3.6 Flash from Google 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 5GoogleGemini 3.6 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
Google logo
Gemini 3.6 Flash
Google · text, image, video, audio, pdf → text

Gemini 3.6 Flash provides sustained frontier-level intelligence optimized for real-world tasks at a higher speed and lower cost. Designed for the agentic era, it excels at code generation, agentic execution, and spatial reasoning. This model is particularly effective for rapid agentic loops involving complex coding cycles and iterations.

Input$0.75 /M
Output$3.75 /M
Cache read$0.075 /M
Details

Pricing & Specifications

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

Claude Opus 5
Gemini 3.6 Flash
Input /M
$5
$0.75
Output /M
$25
$3.75
Cache read /M
$0.5
$0.075
Context length
1,000,000
1,048,576
Max output
128,000
65,536
Time to First Token
0.7 s
6.1 s
Throughput
86.4 tok/s
157.1 tok/s
Modalities
textimagepdf
textimagevideoaudiopdf
Supported Parameters
thinkingtoolsstructured outputslong contextweb
thinkingtoolsfunction callingstructured outputsweblong context
API Formats
chat_completions · claude_api · responses
chat_completions · gemini_api · claude_api
Released
July 24, 2026
July 21, 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-5gemini-3.6-flash

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

claude-opus-5gemini-3.6-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-5gemini-3.6-flash
1440148015201560
Overall
14831492
Coding
15181534
Math
15031521
Hard prompts
15011516
Instruction following
14731496
Multi-turn
14871488
Creative writing
14711472
Longer query
14851503
Chinese
15301549
English
14871494
Vision
claude-opus-5gemini-3.6-flash
126013001340
Overall
12821288
OCR
13011304
Diagram
13101329
Homework
13041323
WebDev Arena
claude-opus-5gemini-3.6-flash
15001560162016801740
Overall
15381658
React
15271678
HTML
15471649
Gaming
15501725
Simulations
15531723
Data analytics
15201579

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.

Gemini 3.6 Flash
$101 /mo
Claude Opus 5
$675 /mo

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

FAQ

Which is cheaper: Claude Opus 5, Gemini 3.6 Flash?

Gemini 3.6 Flash: $3.75/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: 1534; Gemini 3.6 Flash: 1518 (LMArena coding leaderboard).

Which responds faster?

Claude Opus 5: 0.7s 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 Gemini 3.6 Flash accepts 1,048,576 input tokens. Maximum output per request is 128,000 tokens on Claude Opus 5 and 65,536 tokens on Gemini 3.6 Flash.

Which one generates tokens faster?

Gemini 3.6 Flash at 157.1 tok/s and Claude Opus 5 at 86.4 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; Gemini 3.6 Flash accepts text, image, video, audio and PDF input and supports thinking, tool calling, function calling, structured outputs, web search and long context.

Can I call Claude Opus 5 and Gemini 3.6 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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