grok-3-fast-beta
xai · chat model
grok-3-fast-beta is listed here as a chat model from xai. This page shows simple API pricing, token limits, and capability flags so you can compare it with similar options.
Input
$5.0000 / 1M tokens
Output
$25.0000 / 1M tokens
Cached input
$1.2500 / 1M tokens
Context
131.1K
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 | $5.0000 / 1M tokens |
| Output | $25.0000 / 1M tokens |
| Cached input | $1.2500 / 1M tokens |
| Embedding | $5.0000 / 1M tokens |
Token limits
Context window
131.1K
Max input tokens
131.1K
Max output tokens
131.1K
Max tokens
131.1K
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
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-3-fast-beta xai | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text
Output: text | Function callingTool choicePrompt cachingWeb search | 131.1K | Current model Reference row |
| Model | Cost | Input shape | Features | Context | Why it is close |
|---|---|---|---|---|---|
| grok-3-fast-latest xai | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text
Output: text | Function callingTool choicePrompt cachingWeb search | 131.1K | Same provider Overall 100% |
| grok-3 xai | In $3.0000 / 1M tokens Out $15.0000 / 1M tokens | text
Output: text | Function callingTool choicePrompt cachingWeb search | 131.1K | Same provider Overall 92% |
| grok-3-beta xai | In $3.0000 / 1M tokens Out $15.0000 / 1M tokens | text
Output: text | Function callingTool choicePrompt cachingWeb search | 131.1K | Same provider Overall 92% |
| grok-3-latest xai | In $3.0000 / 1M tokens Out $15.0000 / 1M tokens | text
Output: text | Function callingTool choicePrompt cachingWeb search | 131.1K | Same provider Overall 92% |
| grok-3 azure_ai | In $3.0000 / 1M tokens Out $15.0000 / 1M tokens | text
Output: text | Function callingTool choiceWeb search | 131.1K | Text covered Overall 86% |
| grok-3 azure_ai | In $3.0000 / 1M tokens Out $15.0000 / 1M tokens | text
Output: text | Function callingTool choiceWeb search | 131.1K | Text covered Overall 86% |
| grok-2 xai | In $2.0000 / 1M tokens Out $10.0000 / 1M tokens | text
Output: text | Function callingTool choiceWeb search | 131.1K | Same provider Overall 82% |
| grok-2-1212 xai | In $2.0000 / 1M tokens Out $10.0000 / 1M tokens | text
Output: text | Function callingTool choiceWeb search | 131.1K | Same provider Overall 82% |
| grok-3-mini xai | In $0.3000 / 1M tokens Out $0.5000 / 1M tokens | text
Output: text | Function callingTool choicePrompt cachingWeb search | 131.1K | Same provider Overall 76% |
| grok-3-mini-beta xai | In $0.3000 / 1M tokens Out $0.5000 / 1M tokens | text
Output: text | Function callingTool choicePrompt cachingWeb search | 131.1K | Same provider Overall 76% |
| grok-4 xai | In $3.0000 / 1M tokens Out $15.0000 / 1M tokens | text image
Output: text | Function callingTool choicePrompt cachingWeb search | 256.0K | Same provider Overall 73% |
| grok-4-0709 xai | In $3.0000 / 1M tokens Out $15.0000 / 1M tokens | text image
Output: text | Function callingTool choicePrompt cachingWeb search | 256.0K | Same provider Overall 73% |
| anthropic.claude-opus-4-6-v1 bedrock_converse | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text imagepdf
Output: text | Function callingTool choicePrompt caching | 128.0K | Text covered Overall 71% |
| global.anthropic.claude-opus-4-6-v1 bedrock_converse | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text imagepdf
Output: text | Function callingTool choicePrompt caching | 128.0K | Text covered Overall 71% |
| anthropic.claude-opus-4-7 bedrock_converse | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text imagepdf
Output: text | Function callingTool choicePrompt caching | 128.0K | Text covered Overall 71% |
| global.anthropic.claude-opus-4-7 bedrock_converse | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text imagepdf
Output: text | Function callingTool choicePrompt caching | 128.0K | Text covered Overall 71% |
| anthropic.claude-opus-4-5-20251101-v1:0 bedrock_converse | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text imagepdf
Output: text | Function callingTool choicePrompt caching | 64.0K | Text covered Overall 64% |
| claude-opus-4-5 azure_ai | In $5.0000 / 1M tokens Out $25.0000 / 1M tokens | text imagepdf
Output: text | Function callingTool choicePrompt caching | 64.0K | Text covered Overall 64% |
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