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Claude Opus 5 vs Claude Sonnet 5

Compare Claude Opus 5 from Anthropic and Claude Sonnet 5 from Anthropic 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 5AnthropicClaude Sonnet 5
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Anthropic logo
Claude Opus 5
Anthropic · text, image → 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
Anthropic logo
Claude Sonnet 5
Anthropic · text, image → text

Claude Sonnet 5 is the next generation of Anthropic's Sonnet model family. It is a drop-in upgrade for Claude Sonnet 4.6 with three behavior changes: adaptive thinking is on by default, manual extended thinking now returns a 400 error (it was deprecated on Claude Sonnet 4.6), and setting sampling parameters (temperature, top_p, top_k) to non-default values returns a 400 error

Input$2 /M
Output$10 /M
Details

Pricing & Specifications

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

Claude Opus 5
Claude Sonnet 5
Input /M
$5
$2
Output /M
$25
$10
Cache read /M
$0.5
-
Context length
1,000,000
1,000,000
Max output
128,000
128,000
Time to First Token
1.4 s
1.0 s
Throughput
62.2 tok/s
7839.1 tok/s
Modalities
textimage
textimage
Supported Parameters
thinkingtoolsstructured outputslong contextweb
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · claude_api · responses
chat_completions · gemini_api · claude_api
Released
July 24, 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-5claude-sonnet-5

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

claude-opus-5claude-sonnet-5

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
claude-opus-5claude-sonnet-5
14201460150015401580
Overall
14621493
Coding
15211533
Math
14741526
Hard prompts
14901518
Instruction following
14651498
Multi-turn
14721486
Creative writing
14371475
Longer query
14821507
Chinese
14991560
English
14741492
Vision
claude-opus-5claude-sonnet-5
1240128013201360
Overall
12671290
OCR
12861308
Diagram
13071330
Homework
13101334
WebDev Arena
claude-opus-5claude-sonnet-5
1480156016401720
Overall
15371661
React
15411678
HTML
15231651
Gaming
15741734
Simulations
15501711
Data analytics
14981580

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.

Claude Sonnet 5
$270 /mo
Claude Opus 5
$675 /mo

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

FAQ

Which is cheaper: Claude Opus 5, Claude Sonnet 5?

Claude Sonnet 5: $10/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: 1533; Claude Sonnet 5: 1521 (LMArena coding leaderboard).

Which responds faster?

Claude Sonnet 5: 1.0s 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 Claude Sonnet 5 accepts 1,000,000 input tokens. Maximum output per request is 128,000 tokens on Claude Opus 5 and 128,000 tokens on Claude Sonnet 5.

Which one generates tokens faster?

Claude Sonnet 5 at 7839.1 tok/s and Claude Opus 5 at 62.2 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 and image input and supports thinking, tool calling, structured outputs, long context and web search; Claude Sonnet 5 accepts text and image input and supports thinking, tool calling, function calling and structured outputs.

Can I call Claude Opus 5 and Claude Sonnet 5 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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