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GPT-5.6 Terra

openai/gpt-5.6-terra

Balanced GPT-5.6 model for capable, cost-efficient everyday work

Compare
Context window
1.1M
Input
Image · Text
Output
Text
Released
2026-07-09
Max output
128K
Knowledge cutoff
2026-02-16
Weights
Closed
Capabilities
Attachments, Reasoning, Structured, Tool call

Pricing

IN

$2.00 – $4.00

USD / 1,000,000 token

$2.00 · prompt: <=272000 input tokens

$4.00 · prompt: >272000 input tokens

Cache read

$0.20 – $0.40

USD / 1,000,000 token

$0.20 · prompt: <=272000 input tokens

$0.40 · prompt: >272000 input tokens

Cache write

$2.50 – $10.00

USD / 1,000,000 token

$2.50 · prompt: <=272000 input tokens; cache minimum lifetime 30m; total write rate (not surcharge)

$5.00 · prompt: >272000 input tokens; cache minimum lifetime 30m; total write rate (not surcharge)

$5.00 · prompt: <=272000 input tokens; cache minimum lifetime 12h; total write rate (not surcharge)

$10.00 · prompt: >272000 input tokens; cache minimum lifetime 12h; total write rate (not surcharge)

OUT

$12.00 – $18.00

USD / 1,000,000 token

$12.00 · prompt: <=272000 input tokens

$18.00 · 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

58.3/100

Coding
55.3
Reasoning
59.8
Professional work
58.3
Knowledge & language
55.4
Arena Agent OverallProfessional workLMArena2026-11-08
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Mystery Game PuzzlesReasoningEpoch AI2026-11-05
Chess PuzzlesReasoningEpoch AI2026-11-05
BullshitBench v2Knowledge & languageBullshitBench2026-11-05
GDPval-AAProfessional workArtificial Analysis2026-11-05
SciCodeGPT-5.6 Terra (Max)CodingArtificial Analysis2026-11-05

Providers

InputOutputCache readCache write
OpenAIgpt-5.6-terraOpenai responsesglobal
OpenRouteropenai/gpt-5.6-terraOpenai chatglobal

ModelRegistry · Catalog updated 2026-11-10