GPT-5.5 vs GPT-5.5 Pro
| Signal | GPT-5.5 | Delta | GPT-5.5 Pro |
|---|---|---|---|
Capabilities | 100 | -- | |
Benchmarks | 93 | +1 | |
Pricing | 70 | +65 | |
Context window size | 86 | -- | |
Recency | 100 | -- | |
Output Capacity | 85 | -- | |
| Overall Result | 2 wins | of 6 | 0 wins |
Score History
92.2
current score
Tied
right now
92.2
current score
GPT-5.5
OpenAI
GPT-5.5 Pro
OpenAI
GPT-5.5 saves you $10000.00/month
That's $120000.00/year compared to GPT-5.5 Pro at your current usage level of 100K calls/month.
| Metric | GPT-5.5 | GPT-5.5 Pro | Winner |
|---|---|---|---|
| Overall Score | 92 | 92 | -- |
| Rank | #7 | #6 | GPT-5.5 Pro |
| Quality Rank | #7 | #6 | GPT-5.5 Pro |
| Adoption Rank | #7 | #6 | GPT-5.5 Pro |
| Parameters | -- | -- | -- |
| Context Window | 1050K | 1050K | -- |
| Pricing | $5.00/$30.00/M | $30.00/$180.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 100 | GPT-5.5 |
| Benchmarks | 93 | 92 | GPT-5.5 |
| Pricing | 70 | 5 | GPT-5.5 |
| Context window size | 86 | 86 | GPT-5.5 |
| Recency | 100 | 100 | GPT-5.5 |
| Output Capacity | 85 | 85 | GPT-5.5 |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 92/100 (rank #7), placing it in the top 98% of all 290 models tracked.
Scores 92/100 (rank #6), placing it in the top 98% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Choose GPT-5.5 when you need:
- High-volume production workloads where API costs must be minimized
- Step-by-step reasoning and chain-of-thought problem solving
Choose GPT-5.5 Pro when you need:
- Step-by-step reasoning and chain-of-thought problem solving
GPT-5.5 offers 83% better value per quality point. At 1M tokens/day, you'd spend $525.00/month with GPT-5.5 vs $3150.00/month with GPT-5.5 Pro - a $2625.00 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. GPT-5.5 also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1050K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($30.00/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (92/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
GPT-5.5 and GPT-5.5 Pro are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
By Use Case
Best for Quality
GPT-5.5
Marginally better benchmark scores; both are excellent
Best for Cost
GPT-5.5
83% lower pricing; better value at scale
Best for Reliability
GPT-5.5
Higher uptime and faster response speeds
Best for Prototyping
GPT-5.5
Stronger community support and better developer experience
Best for Production
GPT-5.5
Wider enterprise adoption and proven at scale
by OpenAI
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Cost - 83% lower pricing; better value at scale
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | GPT-5.5 | GPT-5.5 Pro |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
GPT-5.5
OpenAI
GPT-5.5 Pro
OpenAI
GPT-5.5 saves you $225.00/month
That's 83% cheaper than GPT-5.5 Pro at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | GPT-5.5 | GPT-5.5 Pro |
|---|---|---|
| Context Window | 1.1M | 1.1M |
| Max Output Tokens | 128,000 | 128,000 |
| Open Source | No | No |
| Created | Apr 24, 2026 | Apr 24, 2026 |