#166 Grok 4.1 Fast
none
Grok 4.1 Fast is deprecated. xAI recommends switching to Grok 4.3 (https://openrouter.ai/x-ai/grok-4.3)
- Cost
- $0.000
- Time
- 0.1s
- Tokens
- 0 tok
Summary
Grok 4.1 Fast scores 4.0 on AI BENCHY and ranks #166. It has 10.0 reliability, a 20.6% pass rate, $0.008 total cost, and 1.62s average response time.
What makes Grok 4.1 Fast unique: Its total benchmark cost is unusually low for its score range. It is notably fast compared with similar models.
Archived model: this model is no longer updated or tested on new tests.
4.0
Consistency
7.9
10.0
Total Output Tokens
1,723
Total Input Tokens
36,608
Input Price
$0.202 / 1M
Output Price
$0.202 / 1M
Flaky tests
3
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Generation showcase
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-05-08 13:50 Re-test | 4.4 | 10.0 | $0.008 ↓ | Current run | |
| 2026-05-08 13:50 Re-test | 4.4 | 10.0 | $0.009 | Compare | |
| 2026-05-08 13:50 Suite changed | 4.4 | 10.0 | $0.009 | Compare | |
| 2026-04-11 01:44 First recorded run | 4.5 | N/A | $0.009 | Compare |
Run comparison
| Run | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|
| 2026-05-08 13:50 · Current run | 4.0 | 7.9 | 10.0 | 3/19 | 3 | 1,723 | 36,608 | $0.008 | 1.62s |
| 2026-05-08 13:50 · Re-test | 4.4 | 8.8 | 10.0 | 3/19 | 3 | 1,733 | 0 | $0.009 | 1.67s |
| Difference | -0.4 | -0.9 | 0.0 | 0 | 0 | -10 | +36608 | -$0.001 | -50ms |
Price History
Historical pricing data for this model from OpenRouter.
| Date | Input Price | Output Price |
|---|---|---|
| 2026-06-04 15:40 | $0.202 / 1M | $0.202 / 1M |
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 3.2 | 10.0 | |
| Coding | 1.8 | 1.1 | |
| Combined | 3.0 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 5.9 | 7.2 | |
| General Intelligence | 4.4 | 9.9 | |
| Instructions following | 3.0 | 10.0 | |
| Puzzle Solving | 3.0 | 10.0 | |
| Tool Calling | 2.8 | 1.6 | |
| Trivia | 3.0 | 10.0 |