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Claude Opus 4.8 vs moonshotai/kimi-k2-instruct

Compare Claude Opus 4.8 from Anthropic and moonshotai/kimi-k2-instruct from Moonshot AI 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 4.8Moonshot AImoonshotai/kimi-k2-instruct
+ 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
Moonshot AI logo
moonshotai/kimi-k2-instruct
Moonshot AI · text → text

Kimi K2 is Moonshot AI's state-of-the-art Mixture-of-Experts (MoE) language model with 1 trillion total parameters and 32 billion activated parameters. Designed for agentic intelligence, it excels at tool use, coding, and autonomous problem-solving across diverse domains.

Input$0.62 /M
Output$2.48 /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
moonshotai/kimi-k2-instruct
Input /M
$5
$0.62
Output /M
$25
$2.48
Cache read /M
$0.5
-
Context length
1,000,000
NaN
Max output
128,000
0
Time to First Token
-
-
Throughput
-
-
Modalities
textimagepdf
text
Supported Parameters
thinkingtoolsfunction callingstructured outputs
toolsfunction callingstructured outputs
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-4-8moonshotai/kimi-k2-instruct

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-4-8moonshotai/kimi-k2-instruct

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.

moonshotai/kimi-k2-instruct
$74.40 /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, moonshotai/kimi-k2-instruct?

moonshotai/kimi-k2-instruct: $2.48/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; moonshotai/kimi-k2-instruct accepts text input and supports tool calling, function calling and structured outputs.

Can I call Claude Opus 4.8 and moonshotai/kimi-k2-instruct 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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