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Claude Opus 4.6 vs Claude Opus 4.8

Compare Claude Opus 4.6 from Anthropic and Claude Opus 4.8 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 4.6AnthropicClaude Opus 4.8
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Anthropic logo
Claude Opus 4.6
Anthropic · text, image, pdf → text

Claude Opus 4.6 is Anthropic’s latest state-of-the-art reasoning model. It features an adaptive “thinking” mode that dynamically decides when to think and how much to think. At the default effort level (high), Claude will almost always engage in thinking. At lower effort levels, it may skip thinking for simple problems. ⚠️ The minimum cache token for claude-opus-4-6 has been increased from 1,024 to 4,096 tokens.

Input$5 /M
Output$25 /M
Cache read$0.5 /M
Details
Anthropic logo
Claude Opus 4.8
Anthropic · text, image, pdf → text

Claude Opus 4.8 is Anthropic’s newest and most powerful publicly available model. It is suitable for the most complex tasks. It is Anthropic’s strongest model for complex reasoning, long-horizon agent programming, and highly autonomous work.claude-opus-4-8 does not display thought content by default; you need to set the additional parameter "display": "summarized" to enable it

Input$5 /M
Output$25 /M
Cache read$0.5 /M
Details

Pricing & Specifications

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

Claude Opus 4.6
Claude Opus 4.8
Input /M
$5
$5
Output /M
$25
$25
Cache read /M
$0.5
$0.5
Context length
1,000,000
1,000,000
Max output
128,000
128,000
Time to First Token
1.2 s
1.1 s
Throughput
59.8 tok/s
82.6 tok/s
Modalities
textimagepdf
textimagepdf
Supported Parameters
thinkingtoolsfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · claude_api
Released
February 5, 2026
May 28, 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-4-6claude-opus-4-8

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

claude-opus-4-6claude-opus-4-8

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

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

Text
claude-opus-4-6claude-opus-4-8
1440148015201560
Overall
14731498
Coding
15271546
Math
14741506
Hard prompts
15031527
Instruction following
14771500
Multi-turn
14951511
Creative writing
14651479
Longer query
14991517
Chinese
15231546
English
14801506
Vision
claude-opus-4-6claude-opus-4-8
126013001340
Overall
12791293
OCR
12941310
Diagram
13091331
Homework
13131320
WebDev Arena
claude-opus-4-6claude-opus-4-8
1480152015601600
Overall
15371540
React
15291541
HTML
15271549
Gaming
15661573
Simulations
15431544
Data analytics
15021515

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 Opus 4.6
$675 /mo
Claude Opus 4.8
$675 /mo

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

FAQ

Which is cheaper: Claude Opus 4.6, Claude Opus 4.8?

Claude Opus 4.6: $25/M output tokens; Claude Opus 4.8: $25/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Claude Opus 4.6: 1546; Claude Opus 4.8: 1527 (LMArena coding leaderboard).

Which responds faster?

Claude Opus 4.8: 1.1s 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 4.6 accepts 1,000,000 and Claude Opus 4.8 accepts 1,000,000 input tokens. Maximum output per request is 128,000 tokens on Claude Opus 4.6 and 128,000 tokens on Claude Opus 4.8.

Which one generates tokens faster?

Claude Opus 4.8 at 82.6 tok/s and Claude Opus 4.6 at 59.8 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 4.6 accepts text, image and PDF input and supports thinking, tool calling, function calling and structured outputs; Claude Opus 4.8 accepts text, image and PDF input and supports thinking, tool calling, function calling and structured outputs.

Can I call Claude Opus 4.6 and Claude Opus 4.8 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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