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Every score has a dated snapshot.

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  3. Anthropic Claude Sonnet Latest vs Kimi K3

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Anthropic Claude Sonnet Latest vs Kimi K3 benchmark

In this head-to-head showdown, Anthropic Claude Sonnet Latest is more budget-friendly at $10/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Both Anthropic Claude Sonnet Latest and Kimi K3 present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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Executive Verdict Summary

Anthropic Claude Sonnet Latest holds empirical advantage (2 of 3 metrics)

Coding / SWESWE-bench
Kimi K3Top code solve rate
ReasoningGPQA / Live
Kimi K3Top logical accuracy
Best Value$/1M Tok
Anthropic Claude Sonnet LatestLowest API billing cost
Speed / TokTok/Sec
Kimi K3Fastest stream rate

Verified Advantage Breakdown

3 benchmarks evaluated across capability, speed, and cost

Anthropic Claude Sonnet Latest (2)Kimi K3 (1)
Anthropic Claude Sonnet Latest
2 of 3 Wins
✓Input price✓Output price
Kimi K3
1 of 3 Wins
✓Context window
~anthropic
Leads 2 of 3
Anthropic Claude Sonnet Latest

Auto-discovered from OpenRouter (~anthropic/claude-sonnet-latest). Preview until a second source matches.

In: $2 · Out: $10/1M
Moonshot
Leads 1 of 3
Kimi K3

Moonshot AI frontier flagship reasoning and agent swarm model with 256k context and top-tier SWE-bench coding capability.

Elo 1,528In: $3 · Out: $15/1M

Kimi K3 Thinking Depth & Cost Scaler

Model B

Simulate accuracy gains vs added response time & token cost

Mode: Medium (Deep Reasoning)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Delay
290 ms
Standard
CoT Tokens
~2,500
Internal reasoning
Cost / 1k
$43.50
7.3× base bill
Accuracy Boost
+5.5%
STEM & Logic
Top Rival Showdowns for Anthropic Claude Sonnet Latest
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Pro
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderAnthropic Claude Sonnet Latest Wins

Anthropic Claude Sonnet Latest

$10 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Anthropic Claude Sonnet Latest (2)vsKimi K3 (8)
Anthropic Claude Sonnet Latest: 2W (20%)Overall: Kimi K3Kimi K3: 8W (80%)
← Anthropic Claude Sonnet LatestKimi K3 →
🏆Kimi K3 Leads(5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
Anthropic Claude Sonnet LatestvsKimi K3
Preference Elo
—vs1,528
Coding Elo
—vs1,535
SWE-bench
—vs73.8%
LiveBench
—vs69.5%
GPQA Diamond
—vs88.4%
Anthropic Claude Sonnet Latest: 0WKimi K3: 5W
🏆Kimi K3 Leads(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Anthropic Claude Sonnet LatestvsKimi K3
Output speed
—vs68 tok/s
Time to first token
—vs290 ms
Anthropic Claude Sonnet Latest: 0WKimi K3: 2W
🏆Anthropic Claude Sonnet Latest Leads(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Anthropic Claude Sonnet LatestvsKimi K3
Output price
$10/1Mvs$15/1M+$5/1M
Input price
$2/1Mvs$3/1M+$1/1M
Context window
1Mvs1M+49k
Anthropic Claude Sonnet Latest: 2WKimi K3: 1W

Side-by-Side Benchmark Matrix

Anthropic Claude Sonnet LatestKimi K3
Preference Elo
Anthropic Claude Sonnet Latest—
Kimi K31,528
Coding Elo
Anthropic Claude Sonnet Latest—
Kimi K31,535
LiveBench
Anthropic Claude Sonnet Latest—
Kimi K369.5%
SWE-bench
Anthropic Claude Sonnet Latest—
Kimi K373.8%
GPQA Diamond
Anthropic Claude Sonnet Latest—
Kimi K388.4%
Time to first token
Anthropic Claude Sonnet Latest—
Kimi K3290 ms
Output speed
Anthropic Claude Sonnet Latest—
Kimi K368 tok/s
Input priceAnthropic Claude Sonnet Latest +$1/1M
Anthropic Claude Sonnet Latest$2/1M
Kimi K3$3/1M
Output priceAnthropic Claude Sonnet Latest +$5/1M
Anthropic Claude Sonnet Latest$10/1M
Kimi K3$15/1M
Context windowKimi K3 +49k
Anthropic Claude Sonnet Latest1M
Kimi K31M
BenchmarkAnthropic Claude Sonnet LatestKimi K3Advantage Delta
Preference Elo—
1,528
lmarena · Aug 17, 2026
—
Coding Elo—
1,535
lmarena · Aug 17, 2026
—
LiveBench—
69.5%
livebench · Aug 17, 2026
—
SWE-bench—
73.8%
swebench · Aug 17, 2026
—
GPQA Diamond—
88.4%
seed-bootstrap · Aug 1, 2026
—
Time to first token—
290 ms
seed-bootstrap · Aug 1, 2026
—
Output speed—
68 tok/s
seed-bootstrap · Aug 1, 2026
—
Input price
$2/1M
openrouter · Aug 17, 2026
$3/1M
openrouter · Aug 17, 2026
+$1/1M
Output price
$10/1M
openrouter · Aug 17, 2026
$15/1M
openrouter · Aug 17, 2026
+$5/1M
Context window
1M
openrouter · Aug 17, 2026
1M
openrouter · Aug 17, 2026
+49k

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save 33% with Anthropic Claude Sonnet Latest
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Anthropic Claude Sonnet Latest$220.00 / mo
In: $70Out: $150
Kimi K3$330.00 / mo
In: $105Out: $225
Estimated Cost Delta

Anthropic Claude Sonnet Latest is estimated to save $110.00/month ($1,320/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Anthropic Claude Sonnet Latest:Pick Anthropic Claude Sonnet Latest when you are optimizing output cost.
  • 2
    Kimi K3:Pick Kimi K3 for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatAnthropic Claude Sonnet Latest

Lower output list price ($10/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGKimi K3

Larger window (1M).

Screenshots / visionKimi K3

Kimi K3 is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatAnthropic Claude Sonnet LatestLower output list price ($10/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGKimi K3Larger window (1M).
Screenshots / visionKimi K3Kimi K3 is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news
launchJun 8, 2026

Kimi K3: Moonshot’s long-context open-weight competitive row

Jun 2026. The Kimi vs GPT hub remaps to the top Moonshot Elo vs top OpenAI Elo.

Cast Your Matchup Vote

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
~anthropic

Anthropic Claude Sonnet Latest

Elo n/a
SWE-bench—
Speed (tok/s)1M
Input / 1M Tokens$2/1M
Output / 1M Tokens$10/1M
Moonshot

Kimi K3

Elo 1,528
SWE-bench73.8%
Speed (tok/s)68 tok/s
Input / 1M Tokens$3/1M
Output / 1M Tokens$15/1M

Frequently Asked Questions

Which is better overall, Anthropic Claude Sonnet Latest or Kimi K3?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Anthropic Claude Sonnet Latest or Kimi K3?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
Anthropic Claude Sonnet Latest output tokens are $10/1M versus $15/1M. Input prices and retry rates still move the real bill.
Which is faster, Anthropic Claude Sonnet Latest or Kimi K3?
We do not have TTFT for both models.
Which has the larger context window?
Kimi K3 accepts 1M tokens versus 1M.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Anthropic Claude Sonnet Latest and Kimi K3 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · Jun 8, 2026

    Kimi K3: Moonshot’s long-context open-weight competitive row

Similar Head-to-Head Comparisons

All Anthropic Claude Sonnet Latest matchups →|All Kimi K3 matchups →
Kimi K3 vs MoonshotAI: Kimi K2.5 (previous kimi)MoonshotAI: Kimi K2 0711 vs Kimi K3Kimi Chat 1.5 vs Kimi K3Claude Opus 4.5 vs Kimi K3Claude Opus 4.6 vs Kimi K3Claude Sonnet 4.5 vs Kimi K3