GPT-5.5
by OpenAItext+image+file->text5 endpoints
Neura Intelligence Index
73.2/ 100
Rank
#50—
Confidence
highBenchmarks
10(26% coverage)
Overview
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Capabilities
Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Prompt caching
Modalities
Input
FileImageText
Output
Text
Technical Specifications
Context Window
1.1M tokens
Max Output
128K tokens
Knowledge Cutoff
2025-12-01
Tokenizer
GPT
Content Moderation
Enabled
Uptime (24h)
10000.0%
Country
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools
Benchmark Performance
general
| Benchmark | Score | Source |
|---|---|---|
| MRCR v2 | 74 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| SWE-Bench Pro | 58.6 | verified |
math
| Benchmark | Score | Source |
|---|
Performance Over Time
Pricing
Per 1M tokens
Input$5.00
Output$30.00
Cache read$0.50