Popular Comparisons:
⚡3-Second Selection Verdict
Daily & TestsPick DeepSeek-V4-Pro (Save 74%)
AnthropicVerified

Claude Sonnet 5.5

Input$2.00 / 1M
Output$10.00 / 1M
Context1M
CursorBench Pass Rate55.5%
DeepSeekVerified

DeepSeek-V4-Pro

★ Save 74% ★ Massive Context 1.0M
Input$0.66 / 1M
Output$1.98 / 1M
Context1.0M
CursorBench Pass Rate—

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 5.5$40.00
DeepSeek-V4-Pro$10.56

Context capacity · tokens (not recall accuracy)

Claude Sonnet 5.51,000,000
DeepSeek-V4-Pro1,048,576

CursorBench 4.0 · %

Claude Sonnet 5.555.5%
DeepSeek-V4-ProNo verified data

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

CursorBench · 2026-10-07 ↗
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 5.5 vs DeepSeek-V4-Pro
Slot 1Anthropic
Slot 2DeepSeek
Slot 3
Claude Sonnet 5.5 VS DeepSeek-V4-Pro
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📖 In-depth review available for this matchup

Claude Sonnet 5.5 vs DeepSeek-V4-Pro for coding

Claude Sonnet 5.5 (1M context flagship) vs DeepSeek-V4-Pro (cost-effective MoE): token costs, SWE-bench coding benchmarks, agent tool use, and 2026 choice guide on AICoder.

Read Comparison Guide →

💰 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 5.5
$40.00/ mo
(in: $20.00 + out: $20.00)
DeepSeek-V4-Pro
$10.56/ mo
(in: $6.60 + out: $3.96)
AttributeClaude Sonnet 5.5AnthropicDeepSeek-V4-ProDeepSeek
Input$2.00$0.66
Output$10.00$1.98
Context1M1.0M
CursorBench Pass Rate55.5%—
StatusVerifiedVerified
Tags & CapabilitiesNew, Flagship, Coding, Agentic, Reasoning, Adaptive thinking, Vision, SOTAFlagship, Reasoning, Coding, Thinking, Open source, Long context
LMArena Code#3#24
LMArena Agent#4#24
CursorBench#2#—
Artificial Analysis#2#20
Vals AI#2#30
LiveBench#7#—
LMArena Text#20#31
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