Models

claude-sonnet-5 vs grok-4.5

Output tokens cost $10.00 per million on claude-sonnet-5 and $6.00 per million on grok-4.5. Input tokens cost $2.00 per million on claude-sonnet-5 and $2.00 per million on grok-4.5. Cached input tokens are billed at $2.00 per million on claude-sonnet-5 and $0.50 per million on grok-4.5. Context windows are 1,000,000 tokens on claude-sonnet-5 and 1,000,000 tokens on grok-4.5. First-token latency measured on AIHubMix is 3.3s on claude-sonnet-5 and 1.8s on grok-4.5. Measured output throughput is 91.0 tokens/s on claude-sonnet-5 and 38.4 tokens/s on grok-4.5. On the LMArena coding leaderboard claude-sonnet-5 scores 1526 and grok-4.5 scores 1520.

Anthropicclaude-sonnet-5Grokgrok-4.5
Anthropic
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$2.00 /M
Output$10.00 /M
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

Specs & Pricing

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

claude-sonnet-5
grok-4.5
Input price
$2.00
$2.00
Output price
$10.00
$6.00
Cache read
$2.00
$0.50
Context window
1,000,000
1,000,000
Max output
128,000
1,000,000
Latency (first token)
3.3 s
1.8 s
Throughput
91.0 TPS
38.4 TPS
Modalities
textimage
textimage
Features
thinkingtoolsfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputslong context
Endpoints
chat_completions · gemini_api · claude_api

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-sonnet-5grok-4.5

Tokens / day

-

Requests / day

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Live Performance last 3 days

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

claude-sonnet-5grok-4.5

Throughput (TPS)

-

Latency (s)

-

Uptime (%)

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Arena Scores

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

Text
claude-sonnet-5grok-4.5
14001440148015201560
Overall
14621469
Coding
15201526
Math
14711488
Hard prompts
14911493
Instruction following
14631463
Multi-turn
14691472
Creative writing
14291448
Longer query
14821483
Chinese
14971525
English
14741474
Vision
claude-sonnet-5grok-4.5
12601280130013201340
Overall
12751282
OCR
12931295
Diagram
13201322
Homework
13141325
WebDev Arena
claude-sonnet-5grok-4.5
1480152015601600
Overall
15421549
React
15481550
HTML
15181593
Gaming
15791583
Simulations
15531598
Data analytics
14961514

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-sonnet-5
$270 /mo

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

FAQ

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

grok-4.5: $6.00/M output tokens; claude-sonnet-5: $10.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

claude-sonnet-5: 1526; grok-4.5: 1520 (LMArena coding leaderboard).

Which responds faster?

grok-4.5: 1.8s 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-sonnet-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-sonnet-5 and 1,000,000 tokens on grok-4.5.

Which one generates tokens faster?

claude-sonnet-5 at 91.0 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-sonnet-5 accepts text and image input and supports thinking, tool calling, function calling and structured outputs; grok-4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.

Can I call claude-sonnet-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.

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