tokevenGPT 6 Luna
GPT 6 Luna is GPT's fastest and most affordable model, priced at $0.10/MTok input and $0.50/MTok output with a 922K context window. 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.
Input $/MTok
$0.10
Output $/MTok
$0.50
Context window
922K
Cache read discount
90% off
GPT 6 Luna pricing breakdown
| Rate | Input $/MTok | Output $/MTok |
|---|---|---|
| Standard | $0.10 | $0.50 |
| Cached read (90% off input) | $0.01 | - |
| Cached write (25% surcharge) | $0.13 | - |
| Batch (50% off) | $0.05 | $0.25 |
| Long context (≥272.001K tokens) | $0.20 | $0.75 |
All rates in USD per million tokens. Prices verified against provider documentation.
GPT 6 Luna task benchmarks
Confidence scores (0-100) and cross-provider rank for each task type. Rank 1 is best across all 72 models.
Not benchmarked. The third-party benchmark source used for confidence scores does not cover GPT models yet. Scores will appear here once independent benchmarks are published.
GPT 6 Luna cost by use case
Estimated cost per API call using default token counts for each workload.
| Use case | Input tokens | Output tokens | Cost / call |
|---|---|---|---|
| Code Generation | 2,000 | 4,000 | $0.002200 |
| Unit Test Generation | 3,000 | 5,000 | $0.002800 |
| SQL Generation | 1,500 | 1,000 | $0.000650 |
| API Generation | 3,000 | 6,000 | $0.003300 |
| Code Refactoring | 4,000 | 4,000 | $0.002400 |
| Code Review | 5,000 | 2,000 | $0.001500 |
| PR Review | 8,000 | 3,000 | $0.002300 |
| Security Review | 6,000 | 2,500 | $0.001850 |
| Bug Detection | 5,000 | 2,000 | $0.001500 |
| Document Summarization | 10,000 | 1,000 | $0.001500 |
| PDF Summarization | 15,000 | 1,500 | $0.002250 |
| Meeting Notes | 8,000 | 2,000 | $0.001800 |
Monthly cost projections
Projected monthly spend at different call volumes, using code generation as a representative workload (2,000 input / 4,000 output tokens per call).
| Calls / month | Without caching | With caching (90% read discount) |
|---|---|---|
| 1K | $2.2 | $2.07 |
| 10K | $22 | $20.74 |
| 100K | $220 | $207.4 |
| 500K | $1,100 | $1,037 |
| 1M | $2,200 | $2,074 |
Caching estimate assumes 70% of input tokens are cache reads. Your actual cache hit rate will depend on prompt structure and reuse.
Fast / Budget alternatives to GPT 6 Luna
Same-tier models from other providers, sorted by input price.
| Model | Provider | Input $/MTok | Output $/MTok | Input savings |
|---|---|---|---|---|
| Gemini 2.5 Flash-Lite | Gemini | $0.10 | $0.40 | Same price |
| Gemini 3.1 Flash-Lite | Gemini | $0.25 | $1.50 | 150% more |
| Gemini 3.5 Flash-Lite | Gemini | $0.30 | $2.50 | 200% more |
| Gemini 2.5 Flash | Gemini | $0.30 | $2.50 | 200% more |
| Gemini 3 Flash | Gemini | $0.50 | $3.00 | 400% more |
| Gemini 3.6 Flash | Gemini | $0.75 | $3.75 | 650% more |
| Gemini 3.7 Flash | Gemini | $0.75 | $3.75 | 650% more |
| Gemini 3.8 Flash | Gemini | $0.75 | $3.75 | 650% more |
| Claude Haiku 4.5 | Claude | $1.00 | $5.00 | 900% more |
| Gemini Robotics ER 2 | Gemini | $1.00 | $5.00 | 900% more |
| Grok Build 0.1 | Grok | $1.00 | $2.00 | 900% more |
| Gemini 2.5 Computer Use | Gemini | $1.25 | $10.00 | 1150% more |
| Gemini 3.5 Flash | Gemini | $1.50 | $9.00 | 1400% more |
| Gemini Omni 1.1 Flash | Gemini | $1.50 | $9.00 | 1400% more |
| Gemini Omni Flash | Gemini | $1.50 | $9.00 | 1400% more |
Other GPT models
GPT 5 Nano
Fast / Budget / $0.05 in / $0.40 out
GPT 4.1 Nano
Fast / Budget / $0.10 in / $0.40 out
GPT 4o Mini
Fast / Budget / $0.15 in / $0.60 out
GPT 5.6 Luna
Fast / Budget / $0.20 in / $1.20 out
GPT 5.4 Nano
Fast / Budget / $0.20 in / $1.25 out
GPT 5 Mini
Fast / Budget / $0.25 in / $2.00 out
GPT 4.1 Mini
Fast / Budget / $0.40 in / $1.60 out
GPT 3.5 Turbo
Fast / Budget / $0.50 in / $1.50 out
GPT 3.5 Turbo (0125)
Fast / Budget / $0.50 in / $1.50 out
GPT 5.4 Mini
Fast / Budget / $0.75 in / $4.50 out
o3 Mini
Fast / Budget / $1.10 in / $4.40 out
o4 Mini
Fast / Budget / $1.10 in / $4.40 out
GPT 5
Mid-tier / $1.25 in / $10.00 out
GPT 5.1
Mid-tier / $1.25 in / $10.00 out
GPT 5.2
Mid-tier / $1.75 in / $14.00 out
GPT 5.6 Terra
Mid-tier / $2.00 in / $12.00 out
GPT 4.1
Mid-tier / $2.00 in / $8.00 out
GPT 6 Sol
Flagship / $2.00 in / $10.00 out
o3
Mid-tier / $2.00 in / $8.00 out
GPT 5.4
Mid-tier / $2.50 in / $15.00 out
GPT 4o
Mid-tier / $2.50 in / $10.00 out
GPT 5.6 Sol
Flagship / $4.00 in / $20.00 out
GPT 5.5
Flagship / $5.00 in / $30.00 out
GPT 4o (2024-05-13)
Flagship / $5.00 in / $15.00 out
GPT 4 Turbo (2024-04-09)
Flagship / $10.00 in / $30.00 out
GPT 6 Astra
Flagship / $10.00 in / $50.00 out
GPT 5 Pro
Flagship / $15.00 in / $120.00 out
o1
Flagship / $15.00 in / $60.00 out
o3 Pro
Flagship / $20.00 in / $80.00 out
GPT 5.2 Pro
Flagship / $21.00 in / $168.00 out
GPT 4 (0613)
Flagship / $30.00 in / $60.00 out
GPT 5.4 Pro
Flagship / $30.00 in / $180.00 out
GPT 5.5 Pro
Flagship / $30.00 in / $180.00 out
o1 Pro
Flagship / $150.00 in / $600.00 out
Track your GPT 6 Luna spend
See exactly how much you spend on GPT 6 Luna and where you can save. Two-line wrapper install, no API keys shared.