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GPT-5.6 Terra Pro

OpenAI · Flagship quality at workhorse pricing.

Terra is GPT-5.6's throughput tier — most of Sol's capability at a fraction of the price, designed to be the default brain of production apps.

Live OpenRouter pricing · capability ratings & benchmarks are indicative

Context window

1.1M

tokens

Input · $/1M

$2.00

per million tokens

Output · $/1M

$12.00

per million tokens

Vs. cost floor

41×

output cost vs DeepSeek V4.1 Flash

Capability profile

Editorial ratings across six axes (0–100), compiled from publisher reports and public evals — indicative, not measured by TrendNexus.

Benchmark highs

SWE-bench Verified≈73%

strong for its price class

MMLU-Pro≈85%

broad knowledge

LiveCodeBench≈78%

contest-style coding

IFEval≈92%

instruction following

Where it sits in the field

Output cost per million tokens across all 15 tracked flagships — GPT-5.6 Terra Pro highlighted.

Claude Fable 5.1$50.00GPT-5.5$30.00Claude Opus 5.5$20.00Kimi K3$15.00GPT-5.6 Terra Pro$12.00Gemini 3.1 Pro Preview$12.00GPT-6 Sol Pro$10.00Claude Sonnet 5$10.00GLM 5.3 Prime$8.80Grok 4.7$4.80Qwen3 Max Thinking$3.90Gemini 3.8 Flash$3.75DeepSeek V4 Pro 0423$0.696Llama 4 Maverick$0.652DeepSeek V4.1 Flash$0.29

What it's suited to build

Product classes where this model's profile wins — mockups are illustrative, not model output.

Product AI

Production SaaS features

Summarization, extraction, chat — the everything-layer of a product.

Conversational

Customer-facing assistants

High-volume support and onboarding flows at sustainable unit cost.

Coding

IDE completion backends

Fast, competent coding help where Sol would be overkill.

Benchmark figures and capability ratings are indicative — compiled from publisher reports and public leaderboards, refreshed editorially, and not independently measured by TrendNexus. Verify against your own evals before procurement decisions. Pricing updates with the daily build.