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Claude Opus 4.8 vs Solar Pro4

Compare Claude Opus 4.8 from Anthropic and Solar Pro4 from Upstage 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 4.8Solar Pro4
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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
Solar Pro4
Upstage · text → text

Solar Pro 4 is Upstage's cost-efficient large language model, designed for long-horizon tasks, agentic workflows, and document-intensive office productivity. It features an extensive 524,288-token context window alongside robust reasoning and tool calling capabilities.

Input$0.3 /M
Output$1.2 /M
Cache read$0.06 /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
Solar Pro4
Input /M
$5
$0.3
Output /M
$25
$1.2
Cache read /M
$0.5
$0.06
Context length
1,000,000
524,288
Max output
128,000
0
Time to First Token
-
-
Throughput
-
-
Modalities
textimagepdf
text
Supported Parameters
thinkingtoolsfunction callingstructured outputs
reasoningtool callinglong 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-4-8solar-pro4

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-4-8solar-pro4

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.

Solar Pro4
$36.00 /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, Solar Pro4?

Solar Pro4: $1.2/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 Solar Pro4 accepts 524,288 input tokens.

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; Solar Pro4 accepts text input and supports reasoning, tool calling and long context.

Can I call Claude Opus 4.8 and Solar Pro4 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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