Home/Compare/Kimi K3 vs Claude Sonnet 5

Kimi K3 vs Claude Sonnet 5

Compare costs between Moonshot AI's Kimi K3 and Anthropic's Claude Sonnet 5. One typical prompt costs $0.0090 vs $0.0060.

Claude Sonnet 5 is still available, but Anthropic has released newer models. Anthropic names Claude Sonnet 5.5 as the replacement. Details

Cost Comparison

PromptsKimi K3Claude Sonnet 5
1$0.0090$0.0060
100$0.9000$0.6000
1,000$9.00$6.00
10,000$90.00$60.00
100,000$900.00$600.00

Based on 500 input + 500 output tokens per prompt. Prices verified October 2026. Embed this calculator

At 10,000 requests per day, Kimi K3 costs $2,700.00/month vs Claude Sonnet 5 at $1,800.00/month — Claude Sonnet 5 is 33% cheaper.

Kimi K3 vs Claude Sonnet 5: Features & Specs
Kimi K3Claude Sonnet 5
Input price$3.00 / 1M$2.00 / 1M
Output price$15.00 / 1M$10.00 / 1M
Cached input$0.30 / 1M$0.20 / 1M
Typical prompt$0.0090$0.0060
Batch discountNone50% off
Context window1M tokens1M tokens
Max output1,048,576 tokens128,000 tokens
Knowledge cutoffNot publishedJan 2026
Input typesText, Images, VideoText, Images, PDF
Reasoning modeAlways onOptional
Open weightsYesNo
ReleasedNot publishedJune 30, 2026
StatusCurrentOlder, still available

Try It Yourself

0input tokens
Estimated (~4 chars/token)

How many tokens you expect the model to generate per response

Showing a typical prompt (500 input + 500 output tokens) across 27 models. Paste your own prompt above for an exact count.

ModelPer PromptPrompts / $1Monthly
Anthropic$0.00600.6¢166$18.00
Moonshot AI$0.00900.9¢111$27.00
OpenAI$0.0003000.03¢3,333$0.9000
Mistral$0.0003750.037¢2,666$1.13
OpenAI (via Together)$0.0003750.037¢2,666$1.13
OpenAI$0.0007000.07¢1,428$2.10
DeepSeek$0.0007500.075¢1,333$2.25
Meta (via Together)$0.0009250.092¢1,081$2.77
Mistral$0.00100.1¢1,000$3.00
Google$0.00140.14¢714$4.20
xAI$0.00190.19¢533$5.63
Google$0.00220.22¢444$6.75
DeepSeek$0.00260.26¢378$7.92
Meta$0.00270.27¢363$8.25
Anthropic$0.00300.3¢333$9.00
xAI$0.00400.4¢250$12.00
Alibaba (Qwen)$0.00400.4¢250$12.00
Mistral$0.00450.45¢222$13.50
OpenAI$0.00600.6¢166$18.00
OpenAI$0.00600.6¢166$18.00
Anthropic$0.00600.6¢166$18.00
OpenAI$0.00700.7¢142$21.00
Google$0.00700.7¢142$21.00
OpenAI$0.012083$36.00
Anthropic$0.012083$36.00
OpenAI$0.030033$90.00
Anthropic$0.030033$90.00

Prices from official provider pricing pages, verified October 2026.

Kimi K3 vs Claude Sonnet 5 — Frequently Asked Questions

Claude Sonnet 5 is 33% cheaper than Kimi K3. One typical prompt (500 input + 500 output tokens) costs $0.0090 on Kimi K3 and $0.0060 on Claude Sonnet 5. Kimi K3 charges $3.00/$15.00 per million tokens (input/output) vs Claude Sonnet 5's $2.00/$10.00.

It depends on your priorities. Claude Sonnet 5 is more cost-effective at $6.00 per 1,000 prompts. Kimi K3 may offer different capabilities or quality. Kimi K3 has a 1M context window vs Claude Sonnet 5's 1M. Use the calculator above to compare at your actual volume.

Beyond price: Kimi K3 accepts text, images and video, writes up to 1,048,576 tokens per response, always reasons before answering and has open weights you can self-host. Claude Sonnet 5 accepts text, images and PDFs, writes up to 128,000 tokens per response, has a knowledge cutoff of January 2026 and has an optional reasoning (thinking) mode. Kimi K3 has a 1M context window and Claude Sonnet 5 1M. See the specs table above for a side-by-side view.

At 10,000 requests per day, switching from Kimi K3 to Claude Sonnet 5 saves about $900.00/month — a 33% cut on every call. Savings scale linearly with volume.

At 100,000 daily requests, Kimi K3 costs $27,000.00/month and Claude Sonnet 5 costs $18,000.00/month — a difference of $9,000.00/month.