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GPT-5.5

openai/gpt-5.5

Default frontier GPT for coding, computer use, research, and knowledge work

Compare
Context window
1.1M
Input
Image · Text
Output
Text
Released
2026-04-23
Max output
128K
Knowledge cutoff
2025-12-01
Weights
Closed
Capabilities
Attachments, Reasoning, Structured, Tool call

Pricing

IN

$5.00 – $10.00

USD / 1,000,000 token

$5.00 · prompt: <=272000 input tokens

$10.00 · prompt: >272000 input tokens

Cache read

$0.50 – $1.00

USD / 1,000,000 token

$0.50 · prompt: <=272000 input tokens

$1.00 · prompt: >272000 input tokens

OUT

$30.00 – $45.00

USD / 1,000,000 token

$30.00 · prompt: <=272000 input tokens

$45.00 · prompt: >272000 input tokens

Estimate usage cost

Compare verified public prices for this exact model and region. Enter uncached input and cache usage separately. Estimates exclude unspecified fees, credits and currency conversion. Set requests to zero to estimate token charges only.

Performance

Overall capability

59.2/100

Coding
54.0
Reasoning
70.6
Professional work
58.1
Knowledge & language
62.9
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BullshitBench v2Knowledge & languageBullshitBench2026-11-05
MedCodeProfessional workVals AI2026-11-05
AA-BriefcaseProfessional workArtificial Analysis2026-11-05
Chess PuzzlesReasoningEpoch AI2026-11-05

Providers

InputOutputCache readCache write
OpenAIgpt-5.5Openai responsesglobal-
OpenRouteropenai/gpt-5.5Openai chatglobal-

ModelRegistry · Catalog updated 2026-11-05