Popular Comparisons:
⚡3-Second Selection Verdict
Daily & TestsPick Kimi K3 (Save 25%)
Moonshot AIVerified

Kimi K3

★ Save 25% ★ Massive Context 1.0M
Input$3.00 / 1M
Output$15.00 / 1M
Context1.0M
CursorBench Pass Rate—
AnthropicVerified

Claude Opus 5.5

Input$4.00 / 1M
Output$20.00 / 1M
Context1M
CursorBench Pass Rate57.8%

Pick your workflow, then your budget

Estimates use our price snapshot, excluding cache, retries, taxes and tools. Check availability for preview and legacy models.

Workload cost · USD (lower costs less)

Kimi K3$60.00
Claude Opus 5.5$80.00

Context capacity · tokens (not recall accuracy)

Kimi K31,048,576
Claude Opus 5.51,000,000

CursorBench 4.0 · %

Kimi K3No verified data
Claude Opus 5.557.8%

Tool reliability, long-context recall and same-harness SWE-bench: untested, not zero.

CursorBench · 2026-09-22 ↗
Patch review example: why does an empty array slip through?

Editorial example, not measured model output. Review boundary contracts and regression tests; this is not a model ranking.

export function mean(values: number[]) {
  return values.reduce((a, b) => a + b, 0)
    / values.length;
}

// mean([]) => NaN
// Missing an explicit empty-input contract
⚙️ Select ModelKimi K3 vs Claude Opus 5.5
Slot 1Moonshot AI
Slot 2Anthropic
Slot 3
Kimi K3 VS Claude Opus 5.5
💳 View Plans↗

💰 Monthly Cost Simulation

Simulate monthly cost differences based on your estimated token usage volume

Monthly Input Tokens (Prompt)10 M tokens
Monthly Output Tokens (Completion)2 M tokens
Kimi K3
$60.00/ mo
(in: $3 + out: $15)
Claude Opus 5.5
$80.00/ mo
(in: $4 + out: $20)
AttributeKimi K3Moonshot AIClaude Opus 5.5Anthropic
Input$3.00$4.00
Output$15.00$20.00
Context1.0M1M
CursorBench Pass Rate—57.8%
StatusVerifiedVerified
Tags & CapabilitiesFlagship, Reasoning, Coding, Long context, Open weightsNew, Flagship, Reasoning, Coding, Agentic, Adaptive thinking, SOTA
LMArena Code#11#1
LMArena Agent#16#1
CursorBench#—#1
Artificial Analysis#16#1
Vals AI#24#3
LiveBench#11#2
LMArena Text#9#2
ADSponsored