GPT-5.6 Terra
gpt-5.6-terragpt-56-terraopenai-gpt-56-terra- 🆕 Mid-tier of OpenAI's GPT-5.6 family, between Sol and Luna.
- 🎯 Balanced for everyday coding, reasoning, and agentic tasks.
- 📏 One-million-token context window.
- 👁️ Multimodal vision input supported.
- 🔧 Function calling, web search, and reasoning built in.
- 🏢 Released July 2026 alongside the Sol, Terra Pro, and Luna tiers.
- 📚 Higher-capacity Terra Pro variant available alongside it.
OpenAI is an American artificial intelligence research organization headquartered in San Francisco, structured as both a for-profit public benefit corporation and a nonprofit foundation. The lab developed the GPT family of large language models, the DALL-E image generation…
Explore 29 more models by OpenAI →GPT-5.6 Terra is the balanced middle tier of OpenAI's GPT-5.6 generation, sitting between the flagship GPT-5.6 Sol and the cost-efficient GPT-5.6 Luna, with a higher-capacity GPT-5.6 Terra Pro variant alongside it. It carries a one-million-token context window plus vision, function-calling, and web-search capabilities, and is aimed at everyday coding, reasoning, and agentic work.
Terra is the mid-tier successor to OpenAI's earlier general-purpose releases such as GPT-5.5 and GPT-5.4. With GPT-5.6, OpenAI groups the generation into three named tiers — Sol, Terra, and Luna — so that a durable capability tier can advance across generations rather than relying on "mini" or "instant" labels. Terra occupies the balance point, trading some flagship capability for lower cost and latency.
The model exposes adjustable reasoning effort and supports OpenAI's function-calling and web-search tooling, making it suited to multimodal assistants and agentic pipelines that mix text and image input. It was released on July 9, 2026 as part of the broader GPT-5.6 lineup, which also includes the Terra Pro, Sol, Sol Pro, Luna, and Luna Pro tiers. ---
This About section is AI-generated from public sources via VeniceStats + Venice inference, with no human editing. It may contain inaccuracies.
| Seller | Reputation↓ | Routing | Input $/M | Cached $/M | Output $/M | Categories | API |
|---|---|---|---|---|---|---|---|
| ▲ Apex Ant 0x73b4…e736 | 71.90 | #6 | $1.71 | $0.17 | $10.26 | chat,writing,tasks,coding,creative,vision,multimodal,reasoning,long-context,agents | openai-chat-completions |
| Venice.ai Proxy 0x1f22…18c9 | 70.55 | #5 | $1.25 | $0.125 | $7.50 | chat,reasoning,vision,multimodal,web-search | openai-chat-completions |
| D5V1N2 0xd5e7…7be0 | 67.45 | #1 | $0.18 | $0.18 | $1.05 | chat,coding,reasoning,agent,vision,value,router,fallback | openai-chat-completions |
| GesundAI 0x983e…d826 | 66.98 | #2 | $0.36 | $0.04 | $1.80 | chat,code,reasoning,multimodal | openai-responses |
| Super Seeder 0xd19f…41f3 | 63.77 | #4 | $1.2375 | $0.1238 | $7.425 | chat,reasoning,vision,multimodal,tools,long-context | openai-chat-completions |
| Edith AI 0xb269…b1a6 | 61.93 | #3 | $0.75 | $0.15 | $4.50 | chat,coding | openai-chat-completions |
| ZLKPro-Api 0x0b0b…f446 | 58.35 | gated | $0.048 | $0.0195 | $0.29 | agent,chat,text,reasoning,research,smart,long-context,multimodal,visual | openai-chat-completions |
| Open Ant 0xe4f6…5bc4 | 50.00 | gated | $2.50 | $0.25 | $15.00 | chat,reasoning,vision,multimodal,tools,long-context | openai-chat-completions |
| Fire Ant 🔥🐜 0xbe05…bc5d | 50.00 | gated | $2.2067 | $0.2207 | $13.2405 | chat,coding,reasoning,tools | — |
| Open Bird 0xc0f1…8183 | 50.00 | gated | $0.70 | $0.07 | $4.20 | chat,coding,reasoning | openai-chat-completions |
| NovaRoute AI 0xc50d…ed7b | 50.00 | gated | $0.4455 | $0.4455 | $2.2275 | chat,coding,code,reasoning,agent,tasks,frontier,value,gpt,surplus,openai-compatible,low-cost,verified,github,response-auth,base-usdc,monitored | openai-chat-completions |
| Xcat 0xbc33…b75f | 50.00 | gated | $0.40 | $0.05 | $1.50 | — | openai-chat-completions |
| Night Harbor AI 0x305e…fcf6 | 50.00 | gated | $0.08 | $0.01 | $0.35 | chat,reasoning,writing,coding,gpt56,terra,native-gpt | openai-chat-completions |
| api.contactboxtools.me 0x8144…6487 | 46.24 | gated | $0.08 | $0.01 | $0.35 | chat,coding,reasoning,multimodal | openai-chat-completions |
| Hana Gateway ✅ 0x4ae1…117b | 45.41 | gated | $0.06 | $0.06 | $0.36 | chat,coding,reasoning,tools | openai-chat-completions |
| incharge-austin 0x5938…ac97 | 30.79 | gated | $1.90 | $0.19 | $11.40 | chat | openai-chat-completions |
| direkturcrypto-seller 0xe4c4…3c7b | 22.77 | gated | $0.20 | $0.20 | $2.00 | chat,coding,math | openai-chat-completions |
| Apex TEE Test 0xe672…7955 | 15.22 | gated | $0.3292 | $0.045 | $1.9752 | chat,writing,tasks,coding,creative,vision,multimodal,reasoning,long-context,agents | openai-chat-completions |
| Vito-Minimax 0xddfa…27fe | 0.00 | gated | $1.4063 | $1.4063 | $8.4375 | chat,coding,reasoning,via-minimax,alias | openai-chat-completions |
| CatGPT 0xb629…dab4 | 0.00 | gated | $0.45 | $0.05 | $2.25 | chat,code,reasoning,multimodal | openai-responses |
"Best price" and the seller table are live AntSeed catalog data (advertised $/1M tokens — or $ per generated image for unit-billed image models — not settled amounts). Reputation = buyer trust score (0-100, the AntSeed SDK's own formula). "Routing" = the SDK's default buyer routing (what the VPR desktop app ships with): a trust ≥ 60 gate on the effective reputation, then cheapest-first among routable sellers; live failover state (per-peer cooldowns) is buyer-side runtime and not included. Model knowledge (TLDR, provider, About) via the VeniceStats enrichment layer. Advertised catalog, not the model used in any specific purchase. "Usage on AntSeed" counts only settlements whose buyers share the per-model split on-chain (metadata v2/v3, opt-in), so every usage figure is a lower bound.