Head-to-Head Pricing Benchmark

Anthropic: Claude Opus 4.1 vs OpenAI: GPT-5 Pro

Side-by-side pricing and context window comparison for production model selection.

Input delta: $0.00Output delta: $45Monthly delta: $2,700

Default Recommendation (120M input + 60M output)

Anthropic: Claude Opus 4.1 is lower-cost for the default monthly workload scenario.

Adjust the workload in the calculator below to see a live recommendation for your usage.

MetricAnthropic: Claude Opus 4.1OpenAI: GPT-5 Pro
Developeranthropicopenai
Context Window200,000400,000
Input Cost / 1M Tokens$15.00$15.00
Output Cost / 1M Tokens$75.00$120.00
Projected Monthly Cost$6,300$9,000
Vision✅ Yes✅ Yes
Tool Calling✅ Yes✅ Yes
Structured Output✅ Yes✅ Yes
Reasoning✅ Yes✅ Yes
MMLU ScoreN/AN/A

Price History

Anthropic: Claude Opus 4.1 Pricing Trend

Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7Mar 11
$15.00$45.00$75.00Mar 7Mar 8Mar 9Mar 10Mar 11

Current Input / 1M

$15.00

Current Output / 1M

$75.00

Price History

OpenAI: GPT-5 Pro Pricing Trend

Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7Mar 11
$15.00$67.50$120.00Mar 7Mar 8Mar 9Mar 10Mar 11

Current Input / 1M

$15.00

Current Output / 1M

$120.00

Cost Calculator

Adjust your workload to see projected monthly costs.

01.0B
0500M

Anthropic: Claude Opus 4.1

$6,300

per month

Lower cost

OpenAI: GPT-5 Pro

$9,000

per month

Live Recommendation

Anthropic: Claude Opus 4.1 is lower-cost at 120M input + 60M output tokens/month.

Anthropic: Claude Opus 4.1 saves $2,700/mo at this workload
Open Anthropic: Claude Opus 4.1 model pageOpen OpenAI: GPT-5 Pro model page

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FAQ

Common questions for Anthropic: Claude Opus 4.1 vs OpenAI: GPT-5 Pro pricing decisions.

Which is cheaper for input tokens: Anthropic: Claude Opus 4.1 or OpenAI: GPT-5 Pro?

Anthropic: Claude Opus 4.1 is cheaper or equal on input token cost by $0.00 per 1M tokens.

Which is cheaper for output tokens: Anthropic: Claude Opus 4.1 or OpenAI: GPT-5 Pro?

Anthropic: Claude Opus 4.1 is cheaper or equal on output token cost by $45 per 1M tokens.

What is the projected monthly cost difference between Anthropic: Claude Opus 4.1 and OpenAI: GPT-5 Pro?

$2,700 difference for the default scenario (120M input + 60M output tokens/month).

How should I choose between Anthropic: Claude Opus 4.1 and OpenAI: GPT-5 Pro?

Use this page to compare context window and token pricing, then open each model page to evaluate additional alternatives and monthly workload fit.