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GPT-5.5

OpenAI
Model overview

gpt-5.5

OpenAI's newest frontier model for coding and professional work.

general LLMreasoningcodingvision-languageagentchatcode generationsoftware engineering agententerprise access
CompareCompanyRankingsPublic signals
Representative version

gpt-5.5

CompanyOpenAI
ReleaseNot disclosed
Release typeModel release
ParametersNot disclosed
ArchitectureNot disclosed
Context1,050,000
Input modalitiestext / image
Output modalitiestext
Tool use / function callingConfirmed: Tool use, Function calling
Structured output / reasoningConfirmed: Structured output, Reasoning
Vision / audio / videoConfirmed: Vision; Not shown: Audio, Video
Open weights / LicenseNo open weights / license not applicable
openai-gpt-5-5-current · License not applicable
Vendor APIAvailable
GPT-5.5 Model | OpenAI APIopenai-gpt-5-5-current · 2026-05-08
OpenRouterOpenRouter listed
PricingOpenRouter · 2026-07-15: $5 / $30
input / output, per 1M tokens
BenchmarkLMArena 1 row
Public signalsNo reliable public source
Use casesassistant chat / code generation / software engineering agent / enterprise API
Claim evidenceRelease eventGPT-5.5 Model | OpenAI APIgpt-5.5
Model specs / weightsAll models | OpenAI APIGPT-5.5 · gpt-5.5
OpenRouter

Pricing / context / availability

OpenRouterOpenRouter listed
OpenRouter listingopenai/gpt-5.5
Mapped versiongpt-5.5
openai-gpt-5-5-current
PricingOpenRouter · 2026-07-15: $5 / $30
input / output, per 1M tokens
Context1050000
Speed/LatencyNo reliable public source
Snapshot time2026-07-15T20:11:41.551Z
SourceView source
Benchmark

Ranking evidence

SourceTaskRankScoreSampleTimeLink
LMArenaLMArena Search leaderboard score21,237Not applicable2026-05-26T07:37:39.286ZView source
Evidence gaps

Public display boundary

Parameter scale not disclosedRelease date not disclosedNo public model-card activity countersNo linkable real reviewSpeed/latency not disclosed