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GPT-5.5 vs GPT-5.5 Pro

GPT-5.5 vs GPT-5.5 Pro: GPT-5.5 is cheaper for input-heavy usage ($5.00/M vs $30.00/M input tokens), while GPT-5.5 is better for long-context tasks (1,050,000 tokens).

Direct answer: choose GPT-5.5 for lower token spend and choose GPT-5.5 when your workload needs longer context.

Common pricing searches covered on this page: GPT-5.5 vs GPT-5.5 Pro • GPT-5.5 vs GPT-5.5 Pro pricing • GPT-5.5 vs GPT-5.5 Pro API pricing and 5 5 vs 5 5 pro pricing.

OpenAI
GPT-5.5
vs
OpenAI
GPT-5.5 Pro

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

GPT-5.5

Per Request:$0.02
Daily:$2.00
Monthly:$60.00
Yearly:$730.00

GPT-5.5 Pro

Per Request:$0.12
Daily:$12.00
Monthly:$360.00
Yearly:$4,380.00

Cost Differences

+$0.10
Per Request
+$10.00
Daily
+$300.00
Monthly
+$3,650.00
Yearly

GPT-5.5 Pro costs more than GPT-5.5

Quick Recommendation

Winner for direct API pricing: GPT-5.5. At the default workload, GPT-5.5 saves about $300.00/month ($3,650.00/year) versus GPT-5.5 Pro.

Feature Comparison

FeatureGPT-5.5GPT-5.5 Pro
ProviderOpenAIOpenAI
Input Price$5.00/1M tokens$30.00/1M tokens
Output Price$30.00/1M tokens$180.00/1M tokens
Context Window1,050,000 tokens1,050,000 tokens
Max Output128,000 tokens128,000 tokens
Categoryflagshipreasoning
Capabilities
textvisioncodereasoning
textvisioncodereasoning
Release Date4/24/20264/24/2026

GPT-5.5 vs GPT-5.5 Pro: Which Should You Choose?

Choosing between GPT-5.5 and GPT-5.5 Pro depends on your priorities: cost efficiency, context length, or raw capability. GPT-5.5 is the more affordable option at $5.00/1M input tokens83% cheaper than GPT-5.5 Pro.

These models target different tiers: GPT-5.5 is a flagship model while GPT-5.5 Pro is reasoning. This means they're optimized for different workloads. GPT-5.5 is built for complex tasks that require deeper reasoning, while GPT-5.5 Pro offers better value for routine operations.

Output costs matter too. GPT-5.5 charges $30.00/1M output tokens vs $180.00 for GPT-5.5 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-5.5 has the edge here at $30.00/1M output tokens.

Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.

Best Use Cases

Choose GPT-5.5 when:

  • • Budget is a primary concern
  • • You're already using OpenAI's API ecosystem

Choose GPT-5.5 Pro when:

  • • You're already using OpenAI's API ecosystem

Pros and Caveats at a Glance

GPT-5.5

  • Input pricing: $5.00/M tokens
  • Output pricing: $30.00/M tokens
  • Context window: 1,050,000 tokens
  • Max output: 128,000 tokens

Watch out for

  • Trade-offs are minor in this matchup.

GPT-5.5 Pro

  • Input pricing: $30.00/M tokens
  • Output pricing: $180.00/M tokens
  • Context window: 1,050,000 tokens
  • Max output: 128,000 tokens

Watch out for

  • Higher input cost than GPT-5.5
  • Higher output cost than GPT-5.5

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

GPT-5.5 (OpenAI)

GPT-5.5 Pro (OpenAI)

Start using GPT-5.5 today

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Start using GPT-5.5 Pro today

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Frequently Asked Questions

Which is cheaper, GPT-5.5 or GPT-5.5 Pro?
GPT-5.5 is cheaper for input tokens at $5.00 per million tokens vs $30.00 for GPT-5.5 Pro — that's 83% savings on input costs.
What is the context window difference between GPT-5.5 and GPT-5.5 Pro?
GPT-5.5 supports 1,050,000 tokens while GPT-5.5 Pro supports 1,050,000 tokens — a difference of 0 tokens in favor of GPT-5.5.
Which model is better for AI Agent / Agentic Workflows?
Both models support text, code, reasoning. For ai agent / agentic workflows, GPT-5.5 is the lower-cost option, while GPT-5.5 offers a larger context window (1,050,000 vs 1,050,000 tokens). Choose GPT-5.5 for budget sensitivity or GPT-5.5 for longer context tasks.
Which model has better overall pricing for heavy usage?
At 100 requests/day with 1,000 input and 500 output tokens each, GPT-5.5 costs about $60.00/month and GPT-5.5 Pro costs about $360.00/month. Overall, GPT-5.5 has lower combined input + output rates ($5.00 in, $30.00 out) vs GPT-5.5 Pro.

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