Claude 3 Sonnet 20240229
Anthropic · text, image → text
Input$3.3 /M
Output$16.5 /M
← ModelsClaude 3 Sonnet 20240229
Kimi K3
Claude 3 Sonnet 20240229 vs Kimi K3
Compare Claude 3 Sonnet 20240229 from Anthropic and Kimi K3 from Moonshot AI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
Claude 3 Sonnet 20240229Kimi K3+ Add model · 2/4
10% off
Kimi K3
Moonshot AI · text, image, video → text
Kimi K3 is Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window and industry-leading intelligence.
Input$3$2.7 /M
Output$15$13.5 /M
Cache read$0.3$0.27 /M
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Claude 3 Sonnet 20240229
Kimi K3
Input /M
$3.3
$3$2.7−10%
Output /M
$16.5
$15$13.5−10%
Cache read /M
-
$0.3$0.27−10%
Context length
NaN
1,048,576
Max output
0
1,048,576
Time to First Token
0.8 s
0.9 s
Throughput
66.6 tok/s
73.1 tok/s
Modalities
textimage
textimagevideo
Supported Parameters
thinkingfunction callingstructured outputs
API Formats
Released
-
-
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-sonnet-20240229kimi-k3
Tokens / day
-
Requests / day
-
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
claude-3-sonnet-20240229kimi-k3
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
-
LMArena Benchmarks
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Text
claude-3-sonnet-20240229kimi-k3
1220132014201520
Overall
12801486
Coding
13171531
Math
12531253
Hard prompts
12811505
Instruction following
12671479
Multi-turn
12771499
Creative writing
12451470
Longer query
12851502
Chinese
12751527
English
12881491
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.
Kimi K3
$405$365 /mo
Claude 3 Sonnet 20240229
$446 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Claude 3 Sonnet 20240229, Kimi K3?
Kimi K3: $13.5/M output tokens; Claude 3 Sonnet 20240229: $16.5/M. Use the cost calculator above to estimate your own workload.
How do their coding arena scores compare?
Kimi K3: 1531; Claude 3 Sonnet 20240229: 1317 (LMArena coding leaderboard).
Which responds faster?
Claude 3 Sonnet 20240229: 0.8s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
Which one generates tokens faster?
Kimi K3 at 73.1 tok/s and Claude 3 Sonnet 20240229 at 66.6 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 Sonnet 20240229 accepts text and image input; Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs.
Can I call Claude 3 Sonnet 20240229 and Kimi K3 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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