LLM Comparison
GPT-5.6 Terra vs Grok 4.7
Side-by-side specs, pricing & capabilities
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2/6 models| Organization | ||
| OpenTools Score | 78 11.1 | |
| Family | GPT-5.6 | Grok |
| Status | Current | Current |
| Release Date | Jul 2026 | Sep 2026 |
| Context Window | 1.1M tokens | 500K tokens |
| Input Price | $2.00/M tokens | $2.00/M tokens |
| Output Price | $12.00/M tokens | $6.00/M tokens |
| Pricing Notes | OpenAI pricing page lists $2.50 input and $15 output per 1M tokens, with GPT-5.6 cache-write and cache-read pricing. | SpaceXAI xAI API global standard tier, USD per million tokens. Below 200,000 prompt tokens: $2 input, $0.50 cached input, $6 output. Above 200,000 prompt tokens: $4 input, $1 cached input, $12 output. Fast serving and regional endpoints have separate conditions. The provider explicitly states there is no text output limit; no numeric maxOutputTokens is asserted. |
| Capabilities | textvisionreasoningcodingtool-useweb-searchfile-searchcomputer-useagents | codingreasoningvisiontool-usestructured-outputlong-contextcontext-caching |
| Training Cutoff | Feb 16, 2026 | — |
| Max Output | 128K tokens | — |
| API Identifier | gpt-5.6-terra | grok-4.7 |
| Benchmarks | ||
| Artificial Analysis Intelligence Index v4.3.2 | — | 42.2 indexartificial-analysis |
| Artificial Analysis Intelligence Index v4.3 | 42.3 indexartificial-analysis | — |
| GPQA Diamond | 92.5%artificial-analysis | — |
| SciCode | 55%artificial-analysis | — |
| Terminal-Bench 2.1 | 88%artificial-analysis | — |
| View GPT-5.6 Terra | View Grok 4.7 | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Grok 4.7Cheapest | $2.00 | $3.00 | $5.00 | — |
| GPT-5.6 Terra | $2.00 | $6.00 | $8.00 | +60% |
OpenAI
GPT-5.6 Terra
GPT-5.6 Terra is OpenAI balanced GPT-5.6 model for teams that need strong reasoning and agentic performance at lower cost than Sol. OpenAI model docs list a 1.05M token context window, 128K max output, and support for functions, web search, file search, and computer use.
xAI
Grok 4.7
Grok 4.7 is SpaceXAI's proprietary coding and knowledge-work model, available as grok-4.7 on the xAI API. It accepts text and images, returns text, and offers a 500,000-token context window. SpaceXAI's release notes specify no text output limit. Standard global API pricing starts at $2 input and $6 output per million tokens, with separate cached-input and long-context rates.
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