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Claude Opus 4.8 vs O3 Mini

Compare Claude Opus 4.8 from Anthropic and O3 Mini from OpenAI 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 4.8OpenAIO3 Mini
+ Add model · 2/4
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
OpenAI logo
O3 Mini
OpenAI · text, image → text

OpenAI's latest fast inference model excels at STEAM tasks and offers exceptional cost-effectiveness. Official support for cache hits reduces input prices by half.

Input$1.1 /M
Output$4.4 /M
Cache read$0.55 /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
O3 Mini
Input /M
$5
$1.1
Output /M
$25
$4.4
Cache read /M
$0.5
$0.55
Context length
1,000,000
NaN
Max output
128,000
0
Time to First Token
-
10.9 s
Throughput
-
474.2 tok/s
Modalities
textimagepdf
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputs
thinking
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-4-8o3-mini

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

claude-opus-4-8o3-mini

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

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Cost calculator

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

O3 Mini
$132 /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, O3 Mini?

O3 Mini: $4.4/M output tokens; Claude Opus 4.8: $25/M. Use the cost calculator above to estimate your own workload.

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; O3 Mini accepts text and image input and supports thinking.

Can I call Claude Opus 4.8 and O3 Mini 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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