openai/gpt-5.6-luna

proprietary
Intelligence
Reasoning
Speed
Context
1.1M
Max output
128K
Input price
$0.2/1M tokens
Output price
$1.2/1M tokens

Capabilities

vision
tool call
structured output
reasoning
json mode
streaming
fine tuning
batch

Details

Provider Perplexity
Creator OpenAI
Familygpt-5.6
Licenseproprietary
Parameters—
Statusactive
Input modalitiestext
Output modalitiestext
Architecture—
Knowledge cutoff
Training data cutoff—
Release date—
Deprecation date—
Typechat
Reasoning tokensYes
Max input922K tokens
Open weightNo
Sourceofficial
Last updated

Pricing

Input
$0.2
↓80%$1
Output
$1.2
↓80%$6
Cache write
—
Cache read
$0.02
↓80%$0.1
Batch in
—
Batch out
—

Input ranges $0.2 to $0.4, output ranges $1.2 to $1.8 per 1M tokens.

Price history · $/1M input
$1
$0.2
Jul 31Jul 31
DateInputOutputCache readChange
Jul 31, 2026c67ed84$1$6$0.1introduced
Jul 31, 20260ed066a$0.2$1.2$0.02↓80%

Input is ↓80% since Jul 31, 2026, from $1 to $0.2 per 1M tokens.

Price across providers

ProviderInputOutputSince launch
OpenRoutercheapest$0.1$0.6↓90%
Cursor$0.2$1.2—
OpenAI$0.2$1.2↓80%
Perplexity$0.2$1.2↓80%
Vercel AI Gateway$0.2$1.2↓80%

Family Comparison: gpt-5.6

ModelContextMax outPricing
openai/gpt-5.6-luna1.1M128K$0.2$1.2
openai/gpt-5.6-terra1.1M128K$2$12
openai/gpt-5.6-sol1.1M128K$5$30

API

GET/v1/models/perplexity/openai/gpt-5.6-luna

openai/gpt-5.6-luna

Changes · 3 entries
openai/gpt-5.6-lunaupdate0ed066aJul 31, 2026, 11:38 AM
pricinginput$1→$0.2output$6→$1.2cached input$0.1→$0.02
pricing_notes["Input ranges $1 to $2, output ranges $6 to $9 per 1M to...→["Input ranges $0.2 to $0.4, output ranges $1.2 to $1.8 p...
openai/gpt-5.6-lunaupdatec67ed84Jul 31, 2026, 10:28 AM
pricinginput$1output$6cached input$0.1
pricing_notes["Input ranges $1 to $2, output ranges $6 to $9 per 1M to...
openai/gpt-5.6-lunacreatebbbc783Jul 12, 2026, 07:45 AM