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Fact Check: Pricing of GPT-5.5 compared to GPT-5.4 and Claude Opus 4.7

Supported

Claim checked

“GPT-5.5 +100% more expensive than GPT5.4 and +20% more expensive than Claude Opus 4.7! When exactly will token prices hit CPI?”

Published

Updated

Verdict

Supported

The claims regarding the pricing of OpenAI's GPT-5.5 are accurate based on API rates released during its launch on April 23, 2026. GPT-5.5's per-token costs are exactly double (+100%) those of its predecessor, GPT-5.4. Additionally, while its input costs match Anthropic's Claude Opus 4.7, its output costs are 20% higher.

6 reviewed sources behind this verdict.

Reasoning

Evidence from multiple tech reports and developer documentation confirms the specific API pricing for these models.

GPT-5.5 vs. GPT-5.4: GPT-5.4 was priced at $2.50 per million input tokens and $15.00 per million output tokens. GPT-5.5 is priced at $5.00 per million input tokens and $30.00 per million output tokens. This represents a 100% increase (doubling) for both input and output costs.

GPT-5.5 vs. Claude Opus 4.7: Claude Opus 4.7 is priced at $5.00 per million input tokens and $25.00 per million output tokens. While the input price for GPT-5.5 is identical to Opus 4.7 ($5.00), the output price of $30.00 is exactly 20% higher than the $25.00 charged by Anthropic.

OpenAI CEO Sam Altman and other reports note that GPT-5.5 is more "token-efficient," meaning it may use fewer tokens to complete the same task, which could lower the total cost of a run despite the higher per-token rates.

Source quality: The report relies on official product release details from OpenAI, tech news coverage from Yahoo Tech, and detailed developer comparisons from Lushbinary, all dated April 23, 2026.

Key checks

  • Comparison of GPT-5.5 and GPT-5.4 pricing: Confirmed that GPT-5.5 costs $5/$30 (input/output) per million tokens, while GPT-5.4 costs $2.50/$15. This is a 100% increase.

  • Comparison of GPT-5.5 and Claude Opus 4.7 pricing: Claude Opus 4.7 costs $5/$25 per million tokens. GPT-5.5's output cost of $30 is 20% higher than Claude's $25.

  • Token efficiency claims: OpenAI and independent testers noted that GPT-5.5 uses fewer tokens to complete tasks, which may offset the higher per-token price in real-world usage.

Confidence

High