TokenPrice

Head-to-Head Pricing Benchmark

OpenAI: o3 Pro vs Anthropic: Claude Opus 4

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

Input delta: $5.00Output delta: $5.00Monthly delta: $900

Default Recommendation (120M input + 60M output)

Anthropic: Claude Opus 4 is lower-cost for the default monthly workload scenario.

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

MetricOpenAI: o3 ProAnthropic: Claude Opus 4
Developeropenaianthropic
Context Window200,000200,000
Input Cost / 1M Tokens$20.00$15.00
Output Cost / 1M Tokens$80.00$75.00
Projected Monthly Cost$7,200$6,300
Vision✅ Yes✅ Yes
Tool Calling✅ Yes✅ Yes
Structured Output✅ Yes❌ No
Reasoning✅ Yes✅ Yes
MMLU ScoreN/AN/A

Price History

OpenAI: o3 Pro Pricing Trend

Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7 — Mar 11
$20.00$50.00$80.00Mar 7Mar 8Mar 9Mar 10Mar 11

Current Input / 1M

$20.00

Current Output / 1M

$80.00

Price History

Anthropic: Claude Opus 4 Pricing Trend

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

Current Input / 1M

$15.00

Current Output / 1M

$75.00

Cost Calculator

Adjust your workload to see projected monthly costs.

01.0B
0500M

OpenAI: o3 Pro

$7,200

per month

Anthropic: Claude Opus 4

$6,300

per month

Lower cost

Live Recommendation

Anthropic: Claude Opus 4 is lower-cost at 120M input + 60M output tokens/month.

Anthropic: Claude Opus 4 saves $900/mo at this workload
Open OpenAI: o3 Pro model pageOpen Anthropic: Claude Opus 4 model page

Compare More Alternatives

Continue evaluation with more “A vs B pricing” decision pages.

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Quick Compare

Compare Any Two Models

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FAQ

Common questions for OpenAI: o3 Pro vs Anthropic: Claude Opus 4 pricing decisions.

Which is cheaper for input tokens: OpenAI: o3 Pro or Anthropic: Claude Opus 4?

Anthropic: Claude Opus 4 is cheaper on input token cost by $5.00 per 1M tokens.

Which is cheaper for output tokens: OpenAI: o3 Pro or Anthropic: Claude Opus 4?

Anthropic: Claude Opus 4 is cheaper on output token cost by $5.00 per 1M tokens.

What is the projected monthly cost difference between OpenAI: o3 Pro and Anthropic: Claude Opus 4?

$900 difference for the default scenario (120M input + 60M output tokens/month).

How should I choose between OpenAI: o3 Pro and Anthropic: Claude Opus 4?

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