AI Cost Calculator

Claude Opus 4 vs GPT-4 Turbo

Side-by-side API pricing and capability comparison

Anthropic

Claude Opus 4

Anthropic's most powerful model — best for complex reasoning, research, and advanced coding tasks.

Input /1M

$15.00

Output /1M

$75.00

Context

200K

Tier

frontier

Prompt caching: $1.50/1M input

Full Claude Opus 4 pricing →

OpenAI

GPT-4 Turbo

Previous GPT-4 flagship with vision. Being superseded by GPT-4o but still available.

Input /1M

$10.00

Output /1M

$30.00

Context

128K

Tier

frontier

Full GPT-4 Turbo pricing →

Monthly Cost Comparison

Usage scenarioClaude Opus 4GPT-4 TurboCheaper by

Light usage

50K in + 20K out /day

$67.50$33.00GPT-4 Turbo 51% cheaper

Medium usage

500K in + 150K out /day

$562.50$285.00GPT-4 Turbo 49% cheaper

Heavy usage

3000K in + 1000K out /day

$3600.00$1800.00GPT-4 Turbo 50% cheaper

Feature Comparison

Vision / Multimodal
Yes
Yes
Extended reasoning
Yes
No
Prompt caching
Yes
No
200K context
Vision
Extended thinking
Tool use
Batch API
128K context

When to Use Each

Choose Claude Opus 4 when:

  • You need a larger context window (200K vs 128K)
  • Extended reasoning is required
  • You prefer Anthropic's ecosystem and tooling

Choose GPT-4 Turbo when:

  • Cost efficiency is critical — 33% cheaper input
  • You prefer OpenAI's ecosystem and tooling

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