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Scheduled for retirement on Mar 11, 2028. Still available at the prices below until then.

GPT-6 Luna

OpenAIReleased Sep 22, 2026KnowledgeMay 2026
VisionTool useReasoningPrompt cachingStructured outputWeb search
Compare GPT-6 LunaCount tokens for GPT-6 Luna
Context
1.1M
Max output
128K
Serving providers
5
Cheapest input
$0.10 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Benchmarks

independent evaluations · source: Artificial Analysis
Speed & latency
Output speed
135 t/s
tokens / second
Time to first token
91.02s
latency
Headline indices
Intelligence Index
38.1
of 100
Individual benchmarks · click a row for effort variants
BenchmarkBest scoreEffortCost / task
Aa Analyst Agent0.4default—
Automation Bench0.5default—
CritPt19%default—
GDPval (normalized)Frozen Aug 18, 202647%default—
Harvey Lab0.0default—
Humanity's Last Exam39%default—
Long-Context Reasoning83%default—
MMMU-Pro80%default—
Omniscience0.7default—
Omniscience Accuracy0.4default—
Omniscience Non Hallucination0.2default—
SciCode55%default—
Terminal Bench400.1default—
Artificial Analysis last published scores for this benchmark on Aug 18, 2026. Scores here are frozen at that date, and models released since are not on it.

Pricing detail

cost beyond the standard rate · source: models.dev
Long context (>200K)
$0.20 / $0.75
input / output · per 1M

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
Azure$0.10$0.501
Amazon Bedrock$0.10$0.501
OpenAICheapest$0.10$0.501
Standardgpt-6-luna
ComponentUnitStandardBatch
Text cached in/1M tok$0.01—
Text cache write/1M tok$0.125—
Text input/1M tok$0.10$0.05
Text output/1M tok$0.50$0.25
OpenRouter$0.10$0.501
VercelVercel reseller quote$0.10$0.501
OpenRouter (batch)$0.05$0.251
Vercel (flex)Vercel reseller quote$0.05$0.251
Vercel (fast)Vercel reseller quote$0.20$1.001
Vercel is dearest at $0.20 / $1.00

Price history

listed seller prices, input and output per 1M tokens
Input Output
$0.00$0.20$0.40$0.60Sep 23Sep 24$0.50$0.10

Cost calculator

estimate your monthly spend on this model
$60
estimated / month

Model IDs

copy the exact identifier for your platform
openai/gpt-6-luna:batchopenai/gpt-6-lunaazure/gpt-6-lunaglobal.openai.gpt-6-lunagpt-6-lunaopenai/gpt-6-lunaopenai/gpt-6-lunaopenai/gpt-6-lunaopenai/gpt-6-lunaopenai/gpt-6-luna-fast

Frequently asked questions

GPT-6 Luna pricing, context and availability

Is GPT-6 Luna still available?

Yes. GPT-6 Luna is scheduled for retirement on 2028-03-11.

How much does GPT-6 Luna cost?

GPT-6 Luna costs $0.10 per 1M input tokens from OpenAI, and $0.50 per 1M output tokens from OpenAI.

What is the context window of GPT-6 Luna?

GPT-6 Luna accepts up to 1.1M tokens of context and can return up to 128K output tokens.

Which providers serve GPT-6 Luna?

GPT-6 Luna is available from 5 serving providers, each with its own pricing and model ID. OpenAI is currently the cheapest.

What can GPT-6 Luna do?

GPT-6 Luna supports image input (vision), tool use, reasoning, prompt caching, structured output and web search.

Other OpenAI models

compare pricing across the OpenAI lineup
gpt-oss-120b$0.03/1M · 23 providersgpt-oss-20b$0.0145/1M · 15 providersGPT-5 Mini$0.25/1M · 9 providersGPT-5$1.25/1M · 9 providersGPT-5 Nano$0.05/1M · 8 providersGPT-5.6 Luna$0.20/1M · 7 providersGPT-5.6 Terra$2.00/1M · 7 providersGPT-4o-mini$0.15/1M · 6 providers
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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