Standard Compute
Model comparison 2026

GPT-5.6 Terra vs Grok 4.7

GPT-5.6 Terra
OpenAI · Balanced · Proprietary
$5.00/1M · 1.1M ctx
Grok 4.7
xAI · Balanced · Proprietary
$3.20/1M · 500K ctx

Community vote

Pick a winner in each dimension. You can change your vote any time.

Output Quality
Correctness and depth of what it produces
Agentic Ability
Tool calls, instruction-following, and multi-step tasks
Speed
Tokens per second and time-to-first-token
Value for money
How much capability you get per dollar
Reliability
Consistent results: fewer refusals, loops and format breaks

Specs and pricing side by side

Spec
GPT-5.6 Terra
Grok 4.7
Maker
OpenAI
xAI
Blended price / 1M
$5.00
$3.20
Input / output
$2.00 in · $12 out / 1M tokens
$2.00 in · $6.00 out / 1M tokens
Context window
1.1M
500K
Open weights
No
No
Tool use
Yes
Yes
Reasoning
Yes
Yes
Output Quality
9.0
9.2
Agentic Ability
9.0
9.0
Speed
8.4
7.8
Value for money
8.8
8.7
Reliability
9.2
8.6

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: GPT-5.6 Terra or Grok 4.7?

Updated 2026-10-13

Choose GPT-5.6 Terra if you want the everyday OpenAI default for agents — volume work with frontier-adjacent quality. Choose Grok 4.7 if you want output-heavy agent work at a mid-tier price.

In our editorial scoring, GPT-5.6 Terra leads in 3 of five dimensions (speed, value for money and reliability), while Grok 4.7 leads in 1. On price, GPT-5.6 Terra runs about $5.00 per 1M tokens (blended) and is proprietary; Grok 4.7 is about $3.20 and proprietary.

Where GPT-5.6 Terra falls short
  • Steps behind Sol on the hardest tasks
  • GPT-6.1 Sol now costs about the same ($2/$10) and scores far higher
Full GPT-5.6 Terra breakdown →
Where Grok 4.7 falls short
  • Prompts of 200K tokens or more cost double
  • Behind the Claude 5.5 and GPT-6 models on Terminal-Bench 4.0
Full Grok 4.7 breakdown →

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