Model comparison
Grok Code Fast 1 vs Hy3 Preview
Head-to-head evidence from 10 shared benchmark results across 3 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Grok Code Fast 1 #180 (Supported); Hy3 Preview unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Grok Code Fast 1 and Hy3 Preview share 10 comparable benchmark results. 1 of 8 categories are comparable. 2 results are unique to Grok Code Fast 1; 12 to Hy3 Preview.
Updated July 18, 2026- Shared results
- 10
- Grok Code Fast 1 only
- 2
- Hy3 Preview only
- 12
- Comparable categories
- 1 / 8
Treat this as a split decision. Grok Code Fast 1 makes more sense if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model; Hy3 Preview is the better fit if you want the cheaper token bill or you want the stronger reasoning-first profile.
Confidence note. This is a partial-evidence comparison with 10 shared benchmark results across 3 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Grok Code Fast 1 and Hy3 Preview finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.
Grok Code Fast 1 is also the more expensive model on tokens at $0.20 input / $1.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Hy3 Preview. That is roughly Infinityx on output cost alone. Hy3 Preview is the reasoning model in the pair, while Grok Code Fast 1 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Grok Code Fast 1 | Δ | Hy3 Preview |
|---|---|---|---|
| Coding | Grok Code Fast 170.8 | Margin← 13.0 | Hy3 Preview57.8 |
| Agentic | Grok Code Fast 1Not measured | MarginNo overlap | Hy3 Preview54.4 |
| Knowledge | Grok Code Fast 1Not measured | MarginNo overlap | Hy3 Preview33.8 |
| Inst. Following | Grok Code Fast 1Not measured | MarginNo overlap | Hy3 Preview63.1 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
SWE-bench Verified
CodingA 70.8%B 74.4%Winner: Hy3 PreviewΔ 3.6SWE-bench Verified: Grok Code Fast 1 scored 70.8%; Hy3 Preview scored 74.4%. Hy3 Preview wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Grok Code Fast 1 | Hy3 Preview | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Grok Code Fast 1$0.2 input / $1.5 output | Hy3 Preview$0 input / $0 output | Hy3 Preview has the lower combined listed price. |
| Generation speedtokens per second | Grok Code Fast 1172 tok/s | Hy3 PreviewNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Grok Code Fast 12.81 s | Hy3 PreviewNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Grok Code Fast 1256K | Hy3 Preview256K | Listed context windows are equal. |
Benchmark Deep Dive
Agentic6 benchmarks
CodingGrok Code Fast 1 wins5 benchmarks
Reasoning2 benchmarks
Knowledge9 benchmarks
| Benchmark | Grok Code Fast 1 | Hy3 Preview | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 21.6% | 41.2% | Hy3 Preview leads |
| AA-GPQA DiamondSource | 72.7% | 89.7% | Hy3 Preview leads |
| AA-HLESource | 7.5% | 31.6% | Hy3 Preview leads |
| AA-Omniscience IndexSource | -36.0% | -18.5% | Hy3 Preview leads |
| AA-Omniscience AccuracySource | 23.8% | 31.5% | Hy3 Preview leads |
| AA-Omniscience Hallucination RateSource | 78.5% | 73.0% | Hy3 Preview leads |
| GPQASource | — | 87.2% | Not comparable |
| GPQA-DSource | — | 87.2% | Not comparable |
| HLESource | — | 25.5% | Not comparable |
Frequently Asked Questions (2)
Which is better, Grok Code Fast 1 or Hy3 Preview?
Grok Code Fast 1 and Hy3 Preview are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.
Which is better for coding, Grok Code Fast 1 or Hy3 Preview?
Grok Code Fast 1 has the edge for coding in this comparison, averaging 70.8 versus 57.8. Inside this category, AA-SciCode is the benchmark that creates the most daylight between them.
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