Model Profile
xai-org/grok-4-1-fast-reasoning
Use this page to decide where this model is a strong fit. Rankings below are benchmark-backed by use case, with explicit confidence and contributor metrics.
Identity
ID: external/xai-org/grok-4-1-fast-reasoning
Author: xai-org
Origin: external_benchmark_shadow
Arch: unknown
Benchmark Coverage
Scored use cases: 12
Avg confidence: 52.9%
Evidence points: 257
Raw rows: 671
Weighted rows: 38
Catalog Metadata
Parameters: unknown
Context window: 4096
Downloads: 0
Price / 1M tokens: $0.28 (blended 3:1)
Intelligence Profile
Dimension Breakdown
* Low confidence — limited benchmark evidence for this dimension
5/5 dimensions scored · Last updated Apr 21, 2026
Benchmark Signals
Click through to the benchmark source behind this model profile.
BFCL Memory Official
Memory Acc
Normalized value 96.5% · confidence 100.0%
Strongest impact in Adult ERP roleplay (explicit)
bfcl_memory_official.memory_acc · Apr 1, 2026
BFCL Multi-turn Official
Multi Turn Acc
Normalized value 76.1% · confidence 100.0%
Strongest impact in Casual chat companion
bfcl_multiturn_official.multi_turn_acc · Apr 1, 2026
BFCL Relevance Detection Official
Relevance Detection
Normalized value 81.3% · confidence 100.0%
Strongest impact in Casual chat companion
bfcl_relevance_detection_official.relevance_detection · Apr 1, 2026
Vals CorpFin v2
overall_accuracy_pct
Normalized value 93.4% · confidence 100.0%
Strongest impact in Thesis red teaming
vals_corp_fin_v2.overall_accuracy_pct · Mar 31, 2026
Vals Finance Agent
overall_accuracy_pct
Normalized value 82.7% · confidence 100.0%
Strongest impact in Thesis red teaming
vals_finance_agent.overall_accuracy_pct · Mar 31, 2026
UGI Leaderboard
Writing ✍️
Normalized value 70.1% · confidence 100.0%
Strongest impact in Adult ERP roleplay (explicit)
ugi_main.writing · Apr 1, 2026
Coverage Diagnostics
actively scoredUse-Case Scores
142
Total Measurements
671
Weighted Measurements
38
Weighted Sources
18
Raw Source Coverage
Weighted Source Coverage
Best Use Cases for This Model
| Use Case | Score |
|---|---|
| Life coaching and goal planning use_case.companion.life_coaching | 46.3% |
| Casual chat companion use_case.companion.casual_chat | 46.3% |
| Tarot-style reading use_case.spiritual.tarot_reading | 46.3% |
| Empathetic support chat use_case.companion.empathy_support_chat | 45.0% |
| Mindfulness and meditation scripts use_case.wellness.mindfulness_scripts | 44.7% |
| Adult ERP roleplay (explicit) use_case.adult.erp_roleplay | 44.7% |
| SFW roleplay and simulation use_case.creative.sfw_roleplay_simulation | 41.5% |
| NPC dialogue use_case.gaming.npc_dialogue | 40.0% |
| Interactive fiction / DM use_case.creative.interactive_fiction_dm | 40.0% |
| Adult erotica (long-form, explicit) use_case.adult.erotica_longform | 39.6% |
| Thesis red teaming use_case.fin.thesis_red_team | 29.7% |
| Earnings call synthesis use_case.fin.earnings_call_synthesis | 27.8% |