GPT-5.6 Sol vs Grok 4.7: Specs & Benchmark Comparison
GPT-5.6 Sol is developed by OpenAI, while Grok 4.7 comes from xAI. GPT-5.6 Sol was released in July 2026, and Grok 4.7 followed 2 months later in September 2026.
The two models share 3 published benchmarks. GPT-5.6 Sol leads on 2 of them, Grok 4.7 on 1. The widest gaps are on HealthBench Professional, where GPT-5.6 Sol scores 60.5% against 56.7%; DeepSWE 1.1, where GPT-5.6 Sol scores 73.0% against 71.0%. Averaged across everything we track, GPT-5.6 Sol sits at 63.9% and Grok 4.7 at 56.5%.
Grok 4.7 is the cheaper API at $2 per million input tokens and $6 per million output tokens, roughly 3 times cheaper than GPT-5.6 Sol at $5 and $30. GPT-5.6 Sol takes the larger context window at 1M tokens, compared with 500K for Grok 4.7. Both accept text and images as input.
| Characteristic | GPT-5.6 Sol | Grok 4.7 |
|---|---|---|
| Company | OpenAI | xAI |
| Release Date | July 9, 2026 | September 21, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.1M | 500K |
| Context (output) | 128K | — |
| Input Price / 1M | $5.00 | $2.00 |
| Output Price / 1M | $30.00 | $6.00 |
| Average Score | 63.9% | 56.5% |
| Benchmarks | ||
| HealthBench Professional | 60.5% | 56.7% |
| DeepSWE 1.1 | 73.0% | 71.0% |
| Terminal-Bench 4.0 | 37.3% | 38.0% |
Visual Benchmark Comparison
Verdict
Grok 4.7 leads in 2 out of 4 comparison categories.
Both models show comparable average scores: GPT-5.6 Sol — 0.6, Grok 4.7 — 0.6.
Grok 4.7 is 4.4x cheaper: input $2.00/1M vs $5.00/1M tokens.
GPT-5.6 Sol supports a larger context: 1M vs 500K tokens.
Grok 4.7 is newer: released 9/21/2026 vs 7/9/2026.
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Frequently Asked Questions
Which is better for coding — GPT-5.6 Sol or Grok 4.7?
Which model is cheaper — GPT-5.6 Sol or Grok 4.7?
Which has a larger context window — GPT-5.6 Sol or Grok 4.7?
The GPT-5.6 Sol and Grok 4.7 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.6 Sol or Grok 4.7 page. See also the complete list of AI model comparisons.