🇺🇸 United States🧠 GeneralistReleased April 2026
GPT-5.5
OpenAI
Free
Verdict
The default choice when quality matters more than budget.
Overview
GPT-5.5 is OpenAI's most capable model at launch. It understands a task earlier, plans, uses tools and checks its own work until completion. It targets agentic coding, computer use and knowledge work. 1M-token context. High output pricing, best reserved for cases where quality matters more than budget.
Skill profile
Verified benchmarks
SWE-Bench82.6%
What do these scores mean?
SWE-Bench82.6%excellent
Resolving real GitHub issues under real conditions (SWE-bench Verified).
Strengths
- Top-tier reasoning
- Excellent at code
- Strong French quality
- Very long context
Limitations
- High output cost
- No native GDPR guarantee
Who is it for
A good fit if…
- you need advanced reasoning or analysis
- you build with a coding agent
- you work in French
Skip it if…
- your budget is tight
- you handle sensitive EU data
Ideal use cases
- Agentic coding and long-horizon tasks
- Research and document analysis
- Multi-tool automation
Access & availability
Paid API per tokenFree tier available
Key specifications
Context
1M
Input price
$5.00 $/M
Output price
$30.00 $/M
Speed
—
Price verified Jun 1, 2026·Official source ↗Benchmarks not audited
Estimate your monthly cost
Per-token API pricing$363/ month with GPT-5.5
For the same usage
- GPT-5$108-70%
- Claude Sonnet 4.6$196-46%
- Grok 4$256-29%
Indicative estimate based on standard API rates (excluding caching, batch and volume discounts). Always check the official pricing before committing.
Privacy
Not GDPR-compliant
Advanced data · for expertsArchitecture, modalities, detailed cost, full benchmarks▾
Advanced data · for experts
Architecture, modalities, detailed cost, full benchmarks
Architecture
—
Size
—
Cutoff date
Nov 2025
Inputs
text, image
Outputs
text
License
commercial
Hosting
—
Hallucination score
—
Estimated cost (API)
Typical exchange (~3k in / 1k out)
≈ $0.0450
1M in + 1M out
≈ $35.00
All benchmarks
| Arena Elo | — |
| MMLU | — |
| GPQA | — |
| HumanEval | — |
| SWE-Bench | 82.6% |
| MATH | — |