Popular Comparisons:
⚡3-Second Selection Verdict
Daily & TestsPick Claude Sonnet 5 (Save 87%)
Complex Refactor/AgentsPick Claude Opus 5 (CursorBench +12.5 pts)
AnthropicVerified

Claude Sonnet 5

★ Save 87%
Input$2.00 / 1M
Output$10.00 / 1M
Context1M
CursorBench Pass Rate34.1%
AnthropicVerified

Claude Opus 5

★ Score Leader (46.6%)
Input$15.00 / 1M
Output$75.00 / 1M
Context1M
CursorBench Pass Rate46.6%

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)

Claude Sonnet 5$40.00
Claude Opus 5$300.00

Context capacity · tokens (not recall accuracy)

Claude Sonnet 51,000,000
Claude Opus 51,000,000

CursorBench 4.0 · %

Claude Sonnet 534.1%
Claude Opus 546.6%

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 ModelClaude Sonnet 5 vs Claude Opus 5
Slot 1Anthropic
Slot 2Anthropic
Slot 3
Claude Sonnet 5 VS Claude Opus 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
Claude Sonnet 5
$40.00/ mo
(in: $2 + out: $10)
Claude Opus 5
$300.00/ mo
(in: $15 + out: $75)
AttributeClaude Sonnet 5AnthropicClaude Opus 5Anthropic
Input$2.00$15.00
Output$10.00$75.00
Context1M1M
CursorBench Pass Rate34.1%46.6%
StatusVerifiedVerified
Tags & CapabilitiesBalanced, Coding, Vision, Adaptive thinkingFlagship, Reasoning, Coding
LMArena Code#29#6
LMArena Agent#12#9
CursorBench#9#3
Artificial Analysis#27#7
Vals AI#19#5
LiveBench#25#10
LMArena Text#33#8
ADSponsored