grok-4.1-fast-non-reasoning
Vertex AI · chat model
grok-4.1-fast-non-reasoning is listed here as a chat model from Vertex AI. This page shows simple API pricing, token limits, and capability flags so you can compare it with similar options.
Input
$0.2000 / 1M tokens
Output
$0.5000 / 1M tokens
Cached input
$0.0500 / 1M tokens
Context
2.0M
Quick read
Best for
Use this page when you need a fast view of cost, context size, and supported features before testing the model in your own workload.
Things to verify
Always check the provider page for discounts, cache pricing, region rules, and any model limits that may not appear in public metadata.
Pricing
| Item | Price |
|---|---|
| Input | $0.2000 / 1M tokens |
| Output | $0.5000 / 1M tokens |
| Cached input | $0.0500 / 1M tokens |
| Embedding | $0.2000 / 1M tokens |
Token limits
Context window
2.0M
Max input tokens
2.0M
Max output tokens
2.0M
Max tokens
2.0M
Capabilities
| Capability | Supported |
|---|---|
| Vision | ✅ |
| Function calling | ✅ |
| Parallel function calling | — |
| Tool choice | ✅ |
| Prompt caching | — |
| Reasoning | — |
| Response schema | ✅ |
| System messages | — |
| Audio input | — |
| Audio output | — |
| Web search | ✅ |
| PDF input | — |
| Video input | — |
Benchmarks
Most benchmark rows are attached to the base model family rather than this provider route. Open benchmark explorer
| Benchmark | Score | Metric | Scope | Checked | Source |
|---|---|---|---|---|---|
| ARC-AGI-2 | 15.9% | accuracy | Base model: grok-4 (Grok 4) | 2026-05-31 | Link |
| Vending-Bench | $4694.15 net worth | net worth | Base model: grok-4 (Grok 4) | 2026-05-31 | Link |
| Humanity's Last Exam | 50.7% (text-only subset) | accuracy | Base model: grok-4 (Grok 4 Heavy) | 2026-05-31 | Link |
| USAMO'25 | 61.9% | accuracy | Base model: grok-4 (Grok 4 Heavy) | 2026-05-31 | Link |
Sources
| Source links | |
| Pricing data | LiteLLM model cost map |
| Synced at | 2026-05-28 |
Docs
| Official docs |
Similar models
This list is ranked by overall similarity. Use filters to emphasize the lens that matters most for the replacement you are making.
Comparing from
| Model | Cost | Input shape | Features | Context | Why it is close |
|---|---|---|---|---|---|
| grok-4.1-fast-non-reasoning Vertex AI | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens |
Output: unknown | VisionFunction callingTool choiceResponse schema | 2.0M | Current model Reference row |
| Model | Cost | Input shape | Features | Context | Why it is close |
|---|---|---|---|---|---|
| grok-4.1-fast-reasoning Vertex AI | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens |
Output: unknown | VisionFunction callingTool choiceResponse schema | 2.0M | Same provider Overall 56% |
| grok-4-1-fast-non-reasoning xai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | VisionFunction callingTool choiceResponse schema | 2.0M | Partial I/O overlap Overall 53% |
| grok-4-1-fast-non-reasoning-latest xai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | VisionFunction callingTool choiceResponse schema | 2.0M | Partial I/O overlap Overall 53% |
| grok-4-1-fast xai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | VisionFunction callingTool choiceResponse schema | 2.0M | Partial I/O overlap Overall 51% |
| grok-4-1-fast-reasoning xai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | VisionFunction callingTool choiceResponse schema | 2.0M | Partial I/O overlap Overall 51% |
| grok-4-1-fast-reasoning-latest xai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | VisionFunction callingTool choiceResponse schema | 2.0M | Partial I/O overlap Overall 51% |
| grok-4-fast-reasoning xai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | Function callingTool choiceWeb search | 2.0M | Partial I/O overlap Overall 48% |
| grok-4.20-non-reasoning Vertex AI | In $2.0000 / 1M tokens Out $6.0000 / 1M tokens |
Output: unknown | VisionFunction callingTool choiceResponse schema | 2.0M | Same provider Overall 42% |
| grok-4-fast-non-reasoning azure_ai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | Function callingTool choiceResponse schemaWeb search | 131.1K | Partial I/O overlap Overall 41% |
| grok-4-fast-reasoning azure_ai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | Function callingTool choiceResponse schemaWeb search | 131.1K | Partial I/O overlap Overall 41% |
| grok-4-1-fast-non-reasoning azure_ai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | Function callingTool choiceResponse schemaWeb search | 131.1K | Partial I/O overlap Overall 41% |
| grok-4.20-reasoning Vertex AI | In $2.0000 / 1M tokens Out $6.0000 / 1M tokens |
Output: unknown | VisionFunction callingTool choiceResponse schema | 2.0M | Same provider Overall 38% |
| grok-4-1-fast-reasoning azure_ai | In $0.2000 / 1M tokens Out $0.5000 / 1M tokens | imagetext
Output: text | Function callingTool choiceResponse schemaWeb search | 131.1K | Partial I/O overlap Overall 38% |
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| gemini-3-flash-preview Vertex AI | In $0.5000 / 1M tokens Out $3.0000 / 1M tokens | pdf
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