- Score
- 8.6 (+0.57 points)
- Total Cost (Current Price)
- $0.061 · 48.6% cheaper
- Response Time (avg)
- 7.51s · 59.2% faster
OpenAI
Release: 2026-07-09
Tested on: 2026-10-01 01:49
openai/gpt-5.6-luna::high
~400B total (~17B active)MoEClosedEstimated
Summary
GPT-5.6 Luna scores 8.0 on AI BENCHY and ranks #96. It has 10.0 reliability, a 71.0% pass rate, $0.118 total cost, and 18.39s average response time.
Recommended alternatives
We recommend choosing one of these models instead:
- Score
- 8.3 (+0.26 points)
- Total Cost (Current Price)
- $0.047 · 60.1% cheaper
- Response Time (avg)
- 18.07s · 1.7% faster
Model facts
Researched on 2026-08-12
- Parameters
- ~400B total (~17B active)
- Architecture
- MoE
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. Vendor does not disclose the architecture or count.
8.0
Consistency
8.6
10.0
Total Output Tokens
139,395
Total Input Tokens
197,896
Input Price
$0.200 / 1M
Output Price
$1.200 / 1M
Cache Read Price
$0.020 / 1M
Cache Write Price
$0.250 / 1M
Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.
Flaky tests
4
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
#96 GPT-5.6 Luna
high- Cost
- $0.033
- Time
- 34.2s
- Tokens
- 5,484 tok
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-10-01 01:49 Re-test | 8.0 | 10.0 | $0.118 ↓ | Current run | |
| 2026-07-16 22:38 New test added | 7.7 | 10.0 | $1.017 | Compare | |
| 2026-07-09 21:32 Initial run | 7.7 | 10.0 | $0.924 | Compare |
This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.
Price History
Historical pricing data for this model from OpenRouter.
| Date | Input Price | Output Price | Cache Read Price | Cache Write Price |
|---|---|---|---|---|
| 2026-07-09 21:33 | $1.000 / 1M | $6.000 / 1M | N/A | N/A |
| 2026-07-28 08:40 | $0.500 / 1M | $3.000 / 1M | N/A | N/A |
| 2026-07-31 10:14 | $0.100 / 1M | $0.601 / 1M | N/A | N/A |
| 2026-08-14 12:51 | $0.100 / 1M | $0.600 / 1M | N/A | N/A |
| 2026-10-01 18:33 | $0.200 / 1M | $1.200 / 1M | $0.020 / 1M | $0.250 / 1M |
Charts
Choose the first model, then click a second model to open a side-by-side page.
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Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Agentic | 10.0 | 10.0 | |
| Anti-AI Tricks | 8.3 | 10.0 | |
| Coding | 5.5 | 4.7 | |
| Combined | 10.0 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 5.3 | 7.2 | |
| General Intelligence | 5.0 | 10.0 | |
| Instructions following | 9.9 | 10.0 | |
| Puzzle Solving | 7.6 | 7.2 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |