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Claude Opus 4.8 vs gemini-2.5-flash-preview-05-20-nothink

Compare Claude Opus 4.8 from Anthropic and gemini-2.5-flash-preview-05-20-nothink 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 4.8Googlegemini-2.5-flash-preview-05-20-nothink
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Anthropic logo
Claude Opus 4.8
Anthropic · text, image, pdf → text

Claude Opus 4.5 is Anthropic’s latest frontier reasoning model, optimized for complex engineering, agentic workflows, and long-horizon computer use. It features strong multimodal capabilities, improved resistance to prompt injection, and a new Verbosity parameter to control token efficiency. With advanced tool use, extended context, and multi-agent support, Opus 4.5 excels in autonomous research, debugging, planning, and spreadsheet/browser operations.

Input$5 /M
Output$25 /M
Cache read$0.5 /M
Details
Google logo
gemini-2.5-flash-preview-05-20-nothink
Google · text, image, video, audio → text

Gemini-2.5-flash-preview-05-20 is enabled by default for thinking; to disable it, request the name gemini-2.5-flash-preview-05-20-nothink.Only OpenAI-compatible format calls are supported; Gemini SDK is not supported. For the native Gemini SDK, please set the parameter budget=0 directly.

Input$0.3 /M
Output$2.499 /M
Details

Pricing & Specifications

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

Claude Opus 4.8
gemini-2.5-flash-preview-05-20-nothink
Input /M
$5
$0.3
Output /M
$25
$2.499
Cache read /M
$0.5
-
Context length
1,000,000
1,048,576
Max output
128,000
65,536
Time to First Token
-
0.7 s
Throughput
-
54.6 tok/s
Modalities
textimagepdf
textimagevideoaudio
Supported Parameters
thinkingtoolsfunction callingstructured outputs
toolsfunction callingstructured outputslong context
API Formats
Released
May 28, 2026
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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-4-8gemini-2.5-flash-preview-05-20-nothink

Tokens / day

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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-4-8gemini-2.5-flash-preview-05-20-nothink

Throughput (tok/s)

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TTFT (s)

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Uptime (%)

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Cost calculator

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

gemini-2.5-flash-preview-05-20-nothink
$55.49 /mo
Claude Opus 4.8
$675 /mo

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

FAQ

Which is cheaper: Claude Opus 4.8, gemini-2.5-flash-preview-05-20-nothink?

gemini-2.5-flash-preview-05-20-nothink: $2.499/M output tokens; Claude Opus 4.8: $25/M. Use the cost calculator above to estimate your own workload.

How large is each context window?

Claude Opus 4.8 accepts 1,000,000 and gemini-2.5-flash-preview-05-20-nothink accepts 1,048,576 input tokens. Maximum output per request is 128,000 tokens on Claude Opus 4.8 and 65,536 tokens on gemini-2.5-flash-preview-05-20-nothink.

What inputs and capabilities does each model support?

Claude Opus 4.8 accepts text, image and PDF input and supports thinking, tool calling, function calling and structured outputs; gemini-2.5-flash-preview-05-20-nothink accepts text, image, video and audio input and supports tool calling, function calling, structured outputs and long context.

Can I call Claude Opus 4.8 and gemini-2.5-flash-preview-05-20-nothink 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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