GPT-6 Luna vs GPT-6.1 Terra

GPT-6 Luna (OpenAI) versus GPT-6.1 Terra (OpenAI): API pricing, context window, capabilities and uptime, from the same data as each model page, at the SoleAPI default channel price. Input costs 0.25 Credits / M for GPT-6 Luna and 3 Credits / M for GPT-6.1 Terra, so GPT-6 Luna is 92% cheaper. Context windows are 1.05M and 1.05M.

GPT-6 Lunagpt-6-luna
OpenAI
Input (prompt)
0.25Credits / M
≈ $0.0379
Output (completion)
1.25Credits / M
≈ $0.189
1.05M context · 128K output62% off
GPT-6 Luna details
GPT-6.1 Terragpt-6.1-terra
OpenAI
Input (prompt)
3Credits / M
≈ $0.454
Output (completion)
15Credits / M
≈ $2.27
1.05M context · 128K output55% off
GPT-6.1 Terra details
Lower input price
GPT-6 Luna
92% cheaper

Specs side by side

Item
GPT-6 Lunagpt-6-luna
GPT-6.1 Terragpt-6.1-terra
Input (prompt) · Credits / M0.25≈ $0.03793≈ $0.454
Output (completion) · Credits / M1.25≈ $0.18915≈ $2.27
Cache read · Credits / M0.0250.15
Context window1.05M1.05M
Max output128K128K
7-day uptime100.0%100.0%
Latest probe latency3.0s2.6s
Measured throughput16.5 t/s18.5 t/s
ProtocolsAnthropic Messages / OpenAI ResponsesAnthropic Messages / OpenAI Responses
Sample monthly cost (10M in + 2M out)5≈ $0.75760≈ $9.08

Prices are the SoleAPI default channel price in Credits (1 Credit = ¥1); green marks the better side. Uptime and latency come from SoleAPI probes; a dash means the model is not probed yet.

Capabilities

CapabilityGPT-6 LunaGPT-6.1 Terra
Vision
Function Calling
Reasoning
Prompt Caching
Response Schema
File Input
Streaming
Web Search
Audio
Video
Realtime
Session
Media
Multipart Form
Binary Response

FAQ

Which is cheaper, GPT-6 Luna or GPT-6.1 Terra?

At the SoleAPI default channel price, GPT-6 Luna input costs 0.25 Credits / M and GPT-6.1 Terra input costs 3 Credits / M, so GPT-6 Luna is 92% cheaper. Output and cache prices are in the specs table above.

Which has the larger context window, GPT-6 Luna or GPT-6.1 Terra?

GPT-6 Luna offers 1.05M tokens, GPT-6.1 Terra offers 1.05M tokens.

Can I switch between GPT-6 Luna and GPT-6.1 Terra at any time?

Yes. SoleAPI calls every model with the same API key; switching is just changing the model field in the request, and billing is split per model in one console.

How do the capabilities of GPT-6 Luna and GPT-6.1 Terra differ?

Their capability flags are identical. Every other capability is either supported by both or by neither; see the capability table above.

More comparisons

GPT-6 Luna vs GPT-5.5GPT-6 Luna vs GPT-5.6 LunaGPT-6 Luna vs GPT-5.6 SolGPT-6 Luna vs GPT-5.6 TerraGPT-6 Luna vs GPT-6 AstraGPT-6 Luna vs GPT-6 SolGPT-6 Luna vs GPT-6.1 SolGPT-6.1 Terra vs GPT-5.5GPT-6.1 Terra vs GPT-5.6 LunaGPT-6.1 Terra vs GPT-5.6 SolGPT-6.1 Terra vs GPT-5.6 TerraGPT-6.1 Terra vs GPT-6 Astra

One API key for both GPT-6 Luna and GPT-6.1 Terra

Free credits on sign-up, pay as you go, no monthly fee.

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