tokevenGPT · Fast / Budget · 922K context window
GPT 6 Luna pricing for invoice parsing
$0.000500 per call at 2,000 input / 600 output tokens.
Per call
$0.000500
10K calls/mo
$5
Cache savings
90% off input
Batch savings
50% off all
Calculate your GPT 6 Luna costs
Adjust token counts, volume, and discount toggles to model your invoice parsing spend. Prices verified daily against provider pricing pages.
Configure your usage
Estimated cost
Quick start
Call GPT 6 Luna with the OpenAI Python SDK:
from openai import OpenAI
client = OpenAI()
response = client.chat.completions.create(
model="gpt-6-luna",
max_tokens=600,
messages=[{"role": "user", "content": "Your prompt here"}]
)
# Cost: ~$0.000500 per call at standard rates
# Input: $0.10/MTok
# Output: $0.50/MTokHow GPT 6 Luna compares on cost
Per-call cost for all models scoring 50+ on invoice parsing benchmarks. Hover for details.
Cheapest viable option: GPT 5.6 Luna at $0.001120/call (-124% less, 89/100 quality).
What drives invoice parsing cost
Invoices are short, highly repetitive documents processed in bulk: the ideal batch API workload. Per-document cost is low; total cost is set by volume and by whether you are paying full rate for a job that could have run asynchronously overnight at a discount. The extraction schema is constant, so it should never be paying full input rate either.
For GPT 6 Luna specifically, that means output tokens cost 5.0x more than input, at $0.50 vs $0.10 per MTok. At this use case’s 2,000/600 token split, output accounts for 60% of the $0.000500 per-call cost.
Complete GPT 6 Luna pricing breakdown
Standard token rates
| Direction | $/MTok | Tokens per call |
|---|---|---|
| Input | $0.10 | 2,000 |
| Output | $0.50 | 600 |
Prompt caching: 90% off input tokens
Caching drops input cost from $0.10 to $0.01/MTok. For repeated system prompts, that saves $0.000180 per call.
Batch API: 50% off all tokens
Submit requests asynchronously and receive 50% off all token costs. This works best for offline pipelines where latency requirements are flexible.
Monthly cost projections
| Monthly volume | Cost per call | Standard monthly | Cached monthly | You save with caching |
|---|---|---|---|---|
| 10,000 calls | $0.000500 | $5 | $3.2 | $1.8 |
| 50,000 calls | $0.000500 | $25 | $16 | $9 |
| 100,000 calls | $0.000500 | $50 | $32 | $18 |
| 500,000 calls | $0.000500 | $250 | $160 | $90 |
| 1,000,000 calls | $0.000500 | $500 | $320 | $180 |
GPT 6 Luna quality benchmarks for invoice parsing
Benchmark data for invoice parsing is pending for GPT 6 Luna. Test against your own evaluation suite before moving to production.
Performance across all task types
GPT 6 Luna scores by task type. Invoice Parsing highlighted.
| Task type | Confidence score | Rank out of 72 |
|---|
Confidence scores are a third-party benchmark snapshot from week 29 of 2026. This snapshot is 10 weeks old, so treat the scores as directional and validate against your own evals.
Alternative models for invoice parsing
14 models score 80+ on invoice parsing benchmarks, sorted by input rate. Cheapest: GPT 5.6 Luna (-124% less, 89/100 quality).
| Model | Provider | Input $/MTok | Output $/MTok | Quality | Per call | vs GPT |
|---|---|---|---|---|---|---|
| GPT 5.6 Luna | GPT | $0.20 | $1.20 | 89/100 | $0.001120 | 124% more |
| Gemini 3.5 Flash-Lite | Gemini | $0.30 | $2.50 | 83/100 | $0.002100 | 320% more |
| Gemini 3 Flash | Gemini | $0.50 | $3.00 | 86/100 | $0.002800 | 460% more |
| Claude Haiku 4.5 | Claude | $1.00 | $5.00 | 88/100 | $0.005000 | 900% more |
| Gemini 3.5 Flash | Gemini | $1.50 | $9.00 | 90/100 | $0.008400 | 1580% more |
| Claude Sonnet 5 | Claude | $2.00 | $10.00 | 88/100 | $0.010000 | 1900% more |
| GPT 5.6 Terra | GPT | $2.00 | $12.00 | 90/100 | $0.0112 | 2140% more |
| Gemini 3.1 Pro | Gemini | $2.00 | $12.00 | 85/100 | $0.0112 | 2140% more |
| GPT 5.4 | GPT | $2.50 | $15.00 | 89/100 | $0.0140 | 2700% more |
| Claude Sonnet 4.6 | Claude | $3.00 | $15.00 | 86/100 | $0.0150 | 2900% more |
| GPT 5.6 Sol | GPT | $4.00 | $20.00 | 88/100 | $0.0200 | 3900% more |
| Claude Opus 4.8 | Claude | $5.00 | $25.00 | 82/100 | $0.0250 | 4900% more |
| GPT 5.5 | GPT | $5.00 | $30.00 | 87/100 | $0.0280 | 5500% more |
| Claude Fable 5 | Claude | $10.00 | $50.00 | 85/100 | $0.0500 | 9900% more |
About GPT 6 Luna
Provider
GPT
Tier
Fast / Budget
Context
922K tokens
Released
Not published
Backfilled on 2026-09-23. Prices confirmed by the provider pricing page and the LiteLLM cross-check. Release date not published in a machine-readable source. Not yet benchmarked, so never recommended.
Other models from GPT
| Model | Tier | Input $/MTok | Output $/MTok | Context |
|---|---|---|---|---|
| GPT 5.5 | Flagship | $5.00 | $30.00 | 1,050K |
| GPT 5.4 | Mid-tier | $2.50 | $15.00 | 1,050K |
| GPT 5.6 Sol | Flagship | $4.00 | $20.00 | 922K |
| GPT 5.6 Terra | Mid-tier | $2.00 | $12.00 | 922K |
| GPT 5.6 Luna | Fast / Budget | $0.20 | $1.20 | 922K |
| GPT 3.5 Turbo | Fast / Budget | $0.50 | $1.50 | 16.385K |
| GPT 3.5 Turbo (0125) | Fast / Budget | $0.50 | $1.50 | 16.385K |
| GPT 4 (0613) | Flagship | $30.00 | $60.00 | 8.192K |
| GPT 4 Turbo (2024-04-09) | Flagship | $10.00 | $30.00 | 128K |
| GPT 4.1 | Mid-tier | $2.00 | $8.00 | 1,047.576K |
| GPT 4.1 Mini | Fast / Budget | $0.40 | $1.60 | 1,047.576K |
| GPT 4.1 Nano | Fast / Budget | $0.10 | $0.40 | 1,047.576K |
| GPT 4o | Mid-tier | $2.50 | $10.00 | 128K |
| GPT 4o (2024-05-13) | Flagship | $5.00 | $15.00 | 128K |
| GPT 4o Mini | Fast / Budget | $0.15 | $0.60 | 128K |
| GPT 5 | Mid-tier | $1.25 | $10.00 | 272K |
| GPT 5 Mini | Fast / Budget | $0.25 | $2.00 | 272K |
| GPT 5 Nano | Fast / Budget | $0.05 | $0.40 | 272K |
| GPT 5 Pro | Flagship | $15.00 | $120.00 | 400K |
| GPT 5.1 | Mid-tier | $1.25 | $10.00 | 272K |
| GPT 5.2 | Mid-tier | $1.75 | $14.00 | 272K |
| GPT 5.2 Pro | Flagship | $21.00 | $168.00 | 272K |
| GPT 5.4 Mini | Fast / Budget | $0.75 | $4.50 | 272K |
| GPT 5.4 Nano | Fast / Budget | $0.20 | $1.25 | 272K |
| GPT 5.4 Pro | Flagship | $30.00 | $180.00 | 1,050K |
| GPT 5.5 Pro | Flagship | $30.00 | $180.00 | 1,050K |
| GPT 6 Astra | Flagship | $10.00 | $50.00 | 922K |
| GPT 6 Sol | Flagship | $2.00 | $10.00 | 922K |
| o1 | Flagship | $15.00 | $60.00 | 200K |
| o1 Pro | Flagship | $150.00 | $600.00 | 200K |
| o3 | Mid-tier | $2.00 | $8.00 | 200K |
| o3 Mini | Fast / Budget | $1.10 | $4.40 | 200K |
| o3 Pro | Flagship | $20.00 | $80.00 | 200K |
| o4 Mini | Fast / Budget | $1.10 | $4.40 | 200K |
You can compare GPT 6 Luna head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.
GPT 6 Luna pricing for other use cases
See how GPT 6 Luna costs change across different workload types.
Code Generation
$0.002200/call
Unit Test Generation
$0.002800/call
SQL Generation
$0.000650/call
API Generation
$0.003300/call
Code Refactoring
$0.002400/call
Code Review
$0.001500/call
PR Review
$0.002300/call
Security Review
$0.001850/call
Bug Detection
$0.001500/call
Document Summarization
$0.001500/call
PDF Summarization
$0.002250/call
Meeting Notes
$0.001800/call
Email Summarization
$0.000550/call
Chatbot
$0.000700/call
RAG Pipeline
$0.001350/call
Customer Support Bot
$0.000800/call
FAQ Bot
$0.000550/call
Data Extraction
$0.000900/call
JSON Extraction
$0.000700/call
Resume Parsing
$0.000650/call
Chain of Thought
$0.002800/call
Legal Analysis
$0.003000/call
Math Reasoning
$0.001650/call
Financial Analysis
$0.002800/call
Content Moderation
$0.000100/call
Sentiment Analysis
$0.000100/call
Categorization
$0.000155/call
Intent Detection
$0.000080/call
Copywriting
$0.001050/call
Blog Writing
$0.004100/call
Marketing Copy
$0.001580/call
Product Descriptions
$0.000800/call
Related pages
Frequently asked questions
How much does GPT 6 Luna cost for invoice parsing per API call?
A typical invoice parsing call using GPT 6 Luna costs about $0.000500 per call. This estimate uses 2,000 input tokens and 600 output tokens at standard rates. Standard rates are $0.10 per million input tokens and $0.50 per million output tokens.
Is GPT 6 Luna the best model for invoice parsing?
Our benchmark data does not yet include a invoice parsing ranking for GPT 6 Luna. We recommend testing it against your own evaluation criteria before production usage.
What is the cheapest model for invoice parsing with good quality?
The most affordable model for invoice parsing above 80/100 quality is GPT 5.6 Luna. It comes from GPT at $0.20 per million input tokens. Output costs $1.20 per million tokens with a quality score of 89/100. Switching from GPT 6 Luna to GPT 5.6 Luna saves about -124% per API call.
How can I reduce my GPT 6 Luna costs for invoice parsing?
Three strategies lower GPT 6 Luna costs for this task type effectively. Prompt caching gives a 90% discount on input tokens when reusing system prompts. The batch API gives 50% off all tokens for asynchronous processing workloads. Prompt optimization reduces token counts through more concise instructions and context windows. Combining caching with batching brings your cost from $0.000500 to about $0.000025 per call.
How does GPT 6 Luna pricing compare to other GPT models?
GPT has 34 other models alongside GPT 6 Luna today: GPT 5.5 at $5.00/$30.00 per million tokens (flagship), GPT 5.4 at $2.50/$15.00 per million tokens (mid-tier), GPT 5.6 Sol at $4.00/$20.00 per million tokens (flagship), GPT 5.6 Terra at $2.00/$12.00 per million tokens (mid-tier), GPT 5.6 Luna at $0.20/$1.20 per million tokens (fast / budget), GPT 3.5 Turbo at $0.50/$1.50 per million tokens (fast / budget), GPT 3.5 Turbo (0125) at $0.50/$1.50 per million tokens (fast / budget), GPT 4 (0613) at $30.00/$60.00 per million tokens (flagship), GPT 4 Turbo (2024-04-09) at $10.00/$30.00 per million tokens (flagship), GPT 4.1 at $2.00/$8.00 per million tokens (mid-tier), GPT 4.1 Mini at $0.40/$1.60 per million tokens (fast / budget), GPT 4.1 Nano at $0.10/$0.40 per million tokens (fast / budget), GPT 4o at $2.50/$10.00 per million tokens (mid-tier), GPT 4o (2024-05-13) at $5.00/$15.00 per million tokens (flagship), GPT 4o Mini at $0.15/$0.60 per million tokens (fast / budget), GPT 5 at $1.25/$10.00 per million tokens (mid-tier), GPT 5 Mini at $0.25/$2.00 per million tokens (fast / budget), GPT 5 Nano at $0.05/$0.40 per million tokens (fast / budget), GPT 5 Pro at $15.00/$120.00 per million tokens (flagship), GPT 5.1 at $1.25/$10.00 per million tokens (mid-tier), GPT 5.2 at $1.75/$14.00 per million tokens (mid-tier), GPT 5.2 Pro at $21.00/$168.00 per million tokens (flagship), GPT 5.4 Mini at $0.75/$4.50 per million tokens (fast / budget), GPT 5.4 Nano at $0.20/$1.25 per million tokens (fast / budget), GPT 5.4 Pro at $30.00/$180.00 per million tokens (flagship), GPT 5.5 Pro at $30.00/$180.00 per million tokens (flagship), GPT 6 Astra at $10.00/$50.00 per million tokens (flagship), GPT 6 Sol at $2.00/$10.00 per million tokens (flagship), o1 at $15.00/$60.00 per million tokens (flagship), o1 Pro at $150.00/$600.00 per million tokens (flagship), o3 at $2.00/$8.00 per million tokens (mid-tier), o3 Mini at $1.10/$4.40 per million tokens (fast / budget), o3 Pro at $20.00/$80.00 per million tokens (flagship), o4 Mini at $1.10/$4.40 per million tokens (fast / budget). The right choice depends on whether your invoice parsing workload prioritizes quality, cost, or speed.
What context window does GPT 6 Luna support?
GPT 6 Luna supports a context window of 922K tokens per API call. This sets the maximum combined length of your input prompt and generated response. For invoice parsing, typical calls use 2,000 input and 600 output tokens. That is well within this limit, leaving room for longer prompts or multi-turn conversations.
Track what you spend on AI
This calculator estimates costs based on published rates only. Connect your API usage to see where your money goes and which models drive your spend.