AIHubMixAIHubMix
← Models

claude-opus-5 vs grok-4.5

Output tokens cost $25.00 per million on claude-opus-5 and $6.00 per million on grok-4.5. Input tokens cost $5.00 per million on claude-opus-5 and $2.00 per million on grok-4.5. Cached input tokens are billed at $0.50 per million on claude-opus-5 and $0.50 per million on grok-4.5. Context windows are 1,000,000 tokens on claude-opus-5 and 1,000,000 tokens on grok-4.5. First-token latency measured on AIHubMix is 1.4s on claude-opus-5 and 1.8s on grok-4.5. Measured output throughput is 56.7 tokens/s on claude-opus-5 and 38.4 tokens/s on grok-4.5. On the LMArena coding leaderboard claude-opus-5 scores 1532 and grok-4.5 scores 1520.

Anthropicclaude-opus-5Grokgrok-4.5
+ Add model 2/4
Anthropic
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$5.00 /M
Output$25.00 /M
Details
Grok
grok-4.5
Grok · text, image → text

Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.

Input$2.00 /M
Output$6.00 /M
Details

Specs & Pricing

Prices are per million tokens. Latency and throughput are rolling averages measured on AIHubMix.

claude-opus-5
grok-4.5
Input price
$5.00
$2.00
Output price
$25.00
$6.00
Cache read
$0.50
$0.50
Context window
1,000,000
1,000,000
Max output
128,000
1,000,000
Latency (first token)
1.4 s
1.8 s
Throughput
56.7 TPS
38.4 TPS
Modalities
textimage
textimage
Features
thinkingtoolsstructured outputslong contextweb
thinkingtoolsfunction callingstructured outputslong context
Endpoints
chat_completions · claude_api · responses

Promotional prices show the discounted rate; see each model page for promotion windows.

Usage on AIHubMix last 30 days

Daily traffic served through AIHubMix — how demand for each model is trending.

claude-opus-5grok-4.5

Tokens / day

-

Requests / day

-

Live Performance last 3 days

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

claude-opus-5grok-4.5

Throughput (TPS)

-

Latency (s)

-

Uptime (%)

-

Arena Scores

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

Text
claude-opus-5grok-4.5
1420148015401600
Overall
14691492
Coding
15201532
Math
14881537
Hard prompts
14911520
Instruction following
14631498
Multi-turn
14721486
Creative writing
14481472
Longer query
14831506
Chinese
15251590
English
14741493
Vision
claude-opus-5grok-4.5
126013001340
Overall
12821295
OCR
12951305
Diagram
13221323
Homework
13251341
WebDev Arena
claude-opus-5grok-4.5
1480156016401720
Overall
15491669
React
15501688
HTML
15931668
Gaming
15831750
Simulations
15981725
Data analytics
15141597

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.

grok-4.5
$210 /mo
claude-opus-5
$675 /mo

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

FAQ

Which is cheaper: claude-opus-5, grok-4.5?

grok-4.5: $6.00/M output tokens; claude-opus-5: $25.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

claude-opus-5: 1532; grok-4.5: 1520 (LMArena coding leaderboard).

Which responds faster?

claude-opus-5: 1.4s first-token latency 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 grok-4.5 accepts 1,000,000 input tokens. Maximum output per request is 128,000 tokens on claude-opus-5 and 1,000,000 tokens on grok-4.5.

Which one generates tokens faster?

claude-opus-5 at 56.7 tokens/s and grok-4.5 at 38.4 tokens/s, measured as output throughput on AIHubMix — a separate metric from first-token latency.

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; grok-4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.

Can I call claude-opus-5 and grok-4.5 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.

Popular Comparisons

Related model match-ups readers also look at.

kimi-k3vsqwen3.8-max-previewclaude-opus-5vsgpt-5.6-lunaclaude-opus-5vsclaude-sonnet-5gemini-3.1-pro-previewvsgpt-5.5glm-5.2vskimi-k3gemini-3.6-flashvsqwen3.8-maxdeepseek-v4-flashvsglm-5.2
AIHubMix

© 2023 - 2026 AIHubMix, LLC

Product

Company

Developer

Connect