text model comparison
Gemini 4 Argon vs Grok 4.5
Gemini 4 Argon and Grok 4.5 are both current text models, from Google and xAI. Both cost $2 per 1M input tokens. On Arena Text, Gemini 4 Argon scores 1525 Elo and Grok 4.5 1466 Elo (Arena, measured October 8, 2026).
Data verified October 13, 2026 · Dataset 2026-10-13
Side by side
Standard-tier prices in effect today. The better value in each row is highlighted.
| Fact | Gemini 4 Argon | Grok 4.5 |
|---|---|---|
| Price per 1M input tokens | $2 | $2 |
| Price per 1M output tokens | $10 | $6 (better) |
| Cost of 10M input and 2M output tokens | $40 | $32 (better) |
| Arena Text | 1525 Elo (#1 of 49) (better) | 1466 Elo (#27 of 49) |
| GPQA Diamond | Not measured | 93.4% (#12 of 40) |
| FrontierMath Tiers 1-3 (v2) | Not measured | 57.2% (#30 of 40) |
| SimpleQA Verified | Not measured | 48.3% (#21 of 36) |
| Provider | xAI | |
| Release date | September 30, 2026 | July 16, 2026 |
| Access | API only | API only |
| Context window | Not reported | 500,000 tokens |
| Max output | 1,000,000 tokens | Not reported |
| Input | text, image, video | text, image |
| Output | text | text |
When to choose each
Gemini 4 Argon
Best for
- Long-horizon coding and knowledge work once it reaches general API access
Watch out for
- Access is limited: Google is rolling it out first to cyber defenders in its Fairwind Program, and no Gemini API model id or pricing page entry exists yet
- The $2 input and $10 output rate is introductory with no end date; Google says $4 and $20 per 1M tokens applies afterwards
- Google has not published the context window
Grok 4.5
Best for
- Coding and agentic API evaluations below the long-context pricing threshold
Watch out for
- The published base rates increase for requests at or above the provider long-context threshold
Gemini 4 Argon vs Grok 4.5 FAQ
Which is cheaper, Gemini 4 Argon or Grok 4.5?
Both cost $2 per 1M input tokens. For 10M input and 2M output tokens, Gemini 4 Argon costs $40 and Grok 4.5 $32 at standard rates.
Which scores higher on independent benchmarks, Gemini 4 Argon or Grok 4.5?
Gemini 4 Argon leads on Arena Text, 1525 Elo to 1466 Elo. Scores are independent evaluations, not either vendor's launch figures.
Related comparisons
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- Claude Opus 5.5 vs Gemini 4 Argon
- Claude Sonnet 5.5 vs Gemini 4 Argon
- Claude Sonnet 5.5 vs Grok 4.5
- Claude Sonnet 5 vs Gemini 4 Argon
- Claude Sonnet 5 vs Grok 4.5
- Gemini 4 Argon vs GPT-4.1
- Gemini 4 Argon vs GPT-5.6 Terra
- Gemini 4 Argon vs GPT-6.1 Sol
Production evaluation
Choosing between Gemini 4 Argon and Grok 4.5?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty