Model comparison
Grok 4.1 Fast vs Inkling
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Verified leaderboard positions: Grok 4.1 Fast unranked; Inkling #17
BenchAlign evidence: Grok 4.1 Fast supported; Inkling not scored. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Grok 4.1 Fast and Inkling share 0 comparable benchmark results. 0 of 8 categories are comparable. 14 results are unique to Grok 4.1 Fast; 16 to Inkling.
Updated July 15, 2026- Shared results
- 0
- Grok 4.1 Fast only
- 14
- Inkling only
- 16
- Comparable categories
- 0 / 8
Benchmark data for Grok 4.1 Fast and Inkling is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Inkling is priced at $1.87 input / $4.68 output per 1M tokens, versus $0.20 input / $0.50 output per 1M tokens for Grok 4.1 Fast.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Grok 4.1 Fast | Inkling | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Grok 4.1 Fast$0.2 input / $0.5 output | Inkling$1.87 input / $4.68 output | Grok 4.1 Fast has the lower combined listed price. |
| Generation speedtokens per second | Grok 4.1 Fast138 tok/s | InklingNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Grok 4.1 Fast0.54 s | InklingNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Grok 4.1 Fast1M | Inkling1M | Listed context windows are equal. |
Benchmark Deep Dive
Agentic6 benchmarks
Coding5 benchmarks
Reasoning2 benchmarks
Knowledge10 benchmarks
| Benchmark | Grok 4.1 Fast | Inkling | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 16.9% | — | Not comparable |
| AA-GPQA DiamondSource | 63.7% | — | Not comparable |
| AA-HLESource | 5.0% | — | Not comparable |
| AA-Omniscience IndexSource | -50.9% | — | Not comparable |
| AA-Omniscience AccuracySource | 17.0% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 81.8% | — | Not comparable |
| GPQASource | — | 87.9% | Not comparable |
| GPQA-DSource | — | 87.9% | Not comparable |
| HLESource | — | 46% | Not comparable |
| HLE w/o toolsSource | — | 30% | Not comparable |
Math1 benchmarks
| Benchmark | Grok 4.1 Fast | Inkling | Result |
|---|---|---|---|
| AIME26Source | — | 97.1% | Not comparable |
Multimodal4 benchmarks
Frequently Asked Questions (3)
Can I compare Grok 4.1 Fast and Inkling on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for Grok 4.1 Fast and Inkling today?
Grok 4.1 Fast: $0.20 input / $0.50 output per 1M tokens Inkling: $1.87 input / $4.68 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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