Model Comparison
GPT-5.6 Luna (Max)
vs. GPT-5.6 Terra (Medium)
GPT-5.6 Luna (Max) has not been available at LLMBase since 26 October 2026. Open alternative: DeepSeek V4 Pro →
GPT-5.6 Terra (Medium) has not been available at LLMBase since 26 October 2026. Open alternative: DeepSeek V4 Pro →
Comparing 2 AI models · 0 benchmarks · OpenAI
Recommended Pick
OpGPT-5.6 Luna (Max)4 metric winsStrongest on: Input price, Output price, Blended price
Lowest Price
GPT-5.6 Luna (Max)
$0.20/1M input price
Differences That Matter
Price gap
GPT-5.6 Luna (Max) is 10x cheaper on input tokens than GPT-5.6 Terra (Medium).
Speed gap
GPT-5.6 Luna (Max) generates about 1.3x as many tokens per second as GPT-5.6 Terra (Medium).
Top-pick rationale
GPT-5.6 Luna (Max) wins 4 measurable categories, including Input price, Output price, Blended price, Throughput.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
GPT-5.6 Luna (Max)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
GPT-5.6 Terra (Medium)
OpenAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
EU-hosted open models, one API
Servers in Germany & Finland. Operated by a German company under the GDPR, DPA available, ISO 27001-certified data centres.
Full Comparison
| Metric | Top Pick Op GPT-5.6 Luna (Max) | Op GPT-5.6 Terra (Medium) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.20/1M | $2.00/1M |
| Output Cost | $1.20/1M | $12.00/1M |
| Blended (3:1) | $0.45/1M | $4.50/1M |
| Specifications | ||
| Organization | OpenAI | OpenAI |
| Release Date | Jul 9, 2026 | Jul 9, 2026 |
| Performance & Speed | ||
| Throughput | 125.3 tok/s | 96.8 tok/s |
| TTFT | 102550ms | 1940ms |
| Latency | 102550ms | 1940ms |
| Composite Indices | ||
| Value Score | 100.0 | — |
| Reasoning Score | 23.8 | — |
| Intelligence | 23.8 | — |
Key Takeaways
GPT-5.6 Luna (Max) offers the best value at $0.20/1M,making it ideal for high-volume applications and cost-conscious projects.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
GPT-5.6 Luna (Max)
- Cost-sensitive applications
- High-volume processing
GPT-5.6 Terra (Medium)
- General-purpose AI
- Versatile applications
Recommended Comparisons
Popular alternatives
