Claude 3.7 Sonnet
Anthropic · text, image → text
Support for the thinking parameter through the original Claude SDK.
Input$3.30 /M
Output$16.50 /M
← ModelsClaude 3.7 Sonnet
Grok 4.5
Claude 3.7 Sonnet vs Grok 4.5
Output tokens cost $16.50 per million on Claude 3.7 Sonnet and $6.00 per million on Grok 4.5. Input tokens cost $3.30 per million on Claude 3.7 Sonnet and $2.00 per million on Grok 4.5. Cached input tokens are billed at $3.30 per million on Claude 3.7 Sonnet and $0.50 per million on Grok 4.5. Context lengths are 200,000 tokens on Claude 3.7 Sonnet and 500,000 tokens on Grok 4.5. Time to first token (TTFT) measured on AIHubMix is 0.6s on Claude 3.7 Sonnet and 1.8s on Grok 4.5. Measured output throughput is 57.3 tok/s on Claude 3.7 Sonnet and 26.5 tok/s on Grok 4.5. On the LMArena coding leaderboard Claude 3.7 Sonnet scores 1430 and Grok 4.5 scores 1523.
Claude 3.7 SonnetGrok 4.5+ Add model · 2/4
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
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Claude 3.7 Sonnet
Grok 4.5
Input /M
$3.30
$2.00
Output /M
$16.50
$6.00
Cache read /M
$3.30
$0.50
Context length
200,000
500,000
Max output
128,000
500,000
Time to First Token
0.6 s
1.8 s
Throughput
57.3 tok/s
26.5 tok/s
Modalities
textimage
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputslong context
API Formats
Released
-
July 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-3-7-sonnetgrok-4.5
Tokens / day
-
Requests / day
-
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
claude-3-7-sonnetgrok-4.5
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
-
LMArena Benchmarks
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Text
claude-3-7-sonnetgrok-4.5
1340140014601520
Overall
13711470
Coding
14301523
Math
13621478
Hard prompts
13981495
Instruction following
13841466
Multi-turn
13961477
Creative writing
13761449
Longer query
14101485
Chinese
13811511
English
13851475
Vision
claude-3-7-sonnetgrok-4.5
1140120012601320
Overall
11751282
OCR
11831295
Diagram
11891321
Homework
12241328
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 3.7 Sonnet
$446 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Claude 3.7 Sonnet, Grok 4.5?
Grok 4.5: $6.00/M output tokens; Claude 3.7 Sonnet: $16.50/M. Use the cost calculator above to estimate your own workload.
How do their coding arena scores compare?
Grok 4.5: 1523; Claude 3.7 Sonnet: 1430 (LMArena coding leaderboard).
Which responds faster?
Claude 3.7 Sonnet: 0.6s 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 3.7 Sonnet accepts 200,000 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 128,000 tokens on Claude 3.7 Sonnet and 500,000 tokens on Grok 4.5.
Which one generates tokens faster?
Claude 3.7 Sonnet at 57.3 tok/s and Grok 4.5 at 26.5 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 3.7 Sonnet 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 3.7 Sonnet 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.
AIHubMix