Grok 4.5 vs Grok 4.6: Specs & Benchmark Comparison
Grok 4.5 and Grok 4.6 both come from xAI, Grok 4.5 was released in July 2026, and Grok 4.6 followed a month later in August 2026.
The two models share 2 published benchmarks. Grok 4.6 leads on 2 of them. The widest gaps are on DeepSWE 1.1, where Grok 4.6 scores 66.0% against 54.0%; Terminal-Bench 4.0, where Grok 4.6 scores 20.3% against 12.4%. Averaged across everything we track, Grok 4.5 sits at 52.9% and Grok 4.6 at 49.6%.
On price the two are close: Grok 4.5 costs $2 per million input tokens and $6 per million output tokens, Grok 4.6 $2 and $6. Both accept a context window of about 500K tokens. Both accept text and images as input.
| Characteristic | Grok 4.5 | Grok 4.6 |
|---|---|---|
| Company | xAI | xAI |
| Release Date | July 16, 2026 | August 12, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 500K | 500K |
| Input Price / 1M | $2.00 | $2.00 |
| Output Price / 1M | $6.00 | $6.00 |
| Average Score | 52.9% | 49.6% |
| Benchmarks | ||
| DeepSWE 1.1 | 54.0% | 66.0% |
| Terminal-Bench 4.0 | 12.4% | 20.3% |
Visual Benchmark Comparison
Verdict
Grok 4.6 leads in 1 out of 4 comparison categories.
Both models show comparable average scores: Grok 4.5 — 0.5, Grok 4.6 — 0.5.
API cost is identical: input $2.00/1M, output $6.00/1M tokens.
Same context size: 500K tokens.
Grok 4.6 is newer: released 8/12/2026 vs 7/16/2026.
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Frequently Asked Questions
Which is better for coding — Grok 4.5 or Grok 4.6?
Which model is cheaper — Grok 4.5 or Grok 4.6?
Which has a larger context window — Grok 4.5 or Grok 4.6?
The Grok 4.5 and Grok 4.6 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Grok 4.5 or Grok 4.6 page. See also the complete list of AI model comparisons.