Grok · Flagship · 500K context window
$0.0340 per call at 8,000 input / 3,000 output tokens.
Per call
$0.0340
10K calls/mo
$340
Cache savings
75% off input
Batch savings
50% off all
Adjust token counts, volume, and discount toggles to model your pr review spend. Prices verified daily against provider pricing pages.
Call Grok 4.6 with the OpenAI Python SDK pointed at api.x.ai:
import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.x.ai/v1",
api_key=os.environ["XAI_API_KEY"],
)
response = client.chat.completions.create(
model="grok-4.6",
max_tokens=3000,
messages=[{"role": "user", "content": "Your prompt here"}]
)
# Cost: ~$0.0340 per call at standard rates
# Input: $2.00/MTok
# Output: $6.00/MTokPer-call cost for all models scoring 50+ on pr review benchmarks. Hover for details.
Cheapest viable option: Claude Sonnet 5 at $0.0460/call (-35% less, 96/100 quality).
A pull request review carries the diff, the surrounding context, and often the PR description (heavy input, moderate output). Cost scales with PR size rather than with how much the model says, so the expensive reviews are the ones nobody wants to read anyway. Splitting large PRs is a cost control as much as an engineering practice.
For Grok 4.6 specifically, that means output tokens cost 3.0x more than input, at $6.00 vs $2.00 per MTok. At this use case’s 8,000/3,000 token split, output accounts for 53% of the $0.0340 per-call cost.
| Direction | $/MTok | Tokens per call |
|---|---|---|
| Input | $2.00 | 8,000 |
| Output | $6.00 | 3,000 |
Caching drops input cost from $2.00 to $0.50/MTok. For repeated system prompts, that saves $0.0120 per call.
Submit requests asynchronously and receive 50% off all token costs. This works best for offline pipelines where latency requirements are flexible.
| Monthly volume | Cost per call | Standard monthly | Cached monthly | You save with caching |
|---|---|---|---|---|
| 10,000 calls | $0.0340 | $340 | $220 | $120 |
| 50,000 calls | $0.0340 | $1,700 | $1,100 | $600 |
| 100,000 calls | $0.0340 | $3,400 | $2,200 | $1,200 |
| 500,000 calls | $0.0340 | $17,000 | $11,000 | $6,000 |
| 1,000,000 calls | $0.0340 | $34,000 | $22,000 | $12,000 |
Benchmark data for pr review is pending for Grok 4.6. Test against your own evaluation suite before moving to production.
Grok 4.6 scores by task type. PR Review highlighted.
| Task type | Confidence score | Rank out of 20 |
|---|
Confidence scores are a third-party benchmark snapshot from week 29 of 2026. This snapshot is 8 weeks old, so treat the scores as directional and validate against your own evals.
9 models score 80+ on pr review benchmarks, sorted by input rate. Cheapest: Claude Sonnet 5 (-35% less, 96/100 quality).
| Model | Provider | Input $/MTok | Output $/MTok | Quality | Per call | vs Grok |
|---|---|---|---|---|---|---|
| Claude Sonnet 5 | Claude | $2.00 | $10.00 | 96/100 | $0.0460 | 35% more |
| GPT 5.6 Terra | GPT | $2.00 | $12.00 | 84/100 | $0.0520 | 53% more |
| Gemini 3.1 Pro | Gemini | $2.00 | $12.00 | 84/100 | $0.0520 | 53% more |
| GPT 5.4 | GPT | $2.50 | $15.00 | 82/100 | $0.0650 | 91% more |
| Claude Sonnet 4.6 | Claude | $3.00 | $15.00 | 95/100 | $0.0690 | 103% more |
| GPT 5.6 Sol | GPT | $4.00 | $20.00 | 92/100 | $0.0920 | 171% more |
| Claude Opus 4.8 | Claude | $5.00 | $25.00 | 94/100 | $0.1150 | 238% more |
| GPT 5.5 | GPT | $5.00 | $30.00 | 90/100 | $0.1300 | 282% more |
| Claude Fable 5 | Claude | $10.00 | $50.00 | 95/100 | $0.2300 | 576% more |
Provider
Grok
Tier
Flagship
Context
500K tokens
Released
Aug 2026
| Model | Tier | Input $/MTok | Output $/MTok | Context |
|---|---|---|---|---|
| Grok 4.5 | Flagship | $2.00 | $6.00 | 500K |
| Grok 4.3 | Mid-tier | $1.25 | $2.50 | 1,000K |
| Grok Build 0.1 | Fast / Budget | $1.00 | $2.00 | 256K |
You can compare Grok 4.6 head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.
See how Grok 4.6 costs change across different workload types.
Code Generation
$0.0280/call
Unit Test Generation
$0.0360/call
SQL Generation
$0.009000/call
API Generation
$0.0420/call
Code Refactoring
$0.0320/call
Code Review
$0.0220/call
Security Review
$0.0270/call
Bug Detection
$0.0220/call
Document Summarization
$0.0260/call
PDF Summarization
$0.0390/call
Meeting Notes
$0.0280/call
Email Summarization
$0.009000/call
Chatbot
$0.0100/call
RAG Pipeline
$0.0210/call
Customer Support Bot
$0.0120/call
FAQ Bot
$0.007800/call
Data Extraction
$0.0140/call
JSON Extraction
$0.0108/call
Invoice Parsing
$0.007600/call
Resume Parsing
$0.009800/call
Chain of Thought
$0.0360/call
Legal Analysis
$0.0440/call
Math Reasoning
$0.0210/call
Financial Analysis
$0.0400/call
Content Moderation
$0.001600/call
Sentiment Analysis
$0.001600/call
Categorization
$0.002500/call
Intent Detection
$0.001200/call
Copywriting
$0.0130/call
Blog Writing
$0.0500/call
Marketing Copy
$0.0196/call
Product Descriptions
$0.0100/call
A typical pr review call using Grok 4.6 costs about $0.0340 per call. This estimate uses 8,000 input tokens and 3,000 output tokens at standard rates. Standard rates are $2.00 per million input tokens and $6.00 per million output tokens.
Our benchmark data does not yet include a pr review ranking for Grok 4.6. We recommend testing it against your own evaluation criteria before production usage.
The most affordable model for pr review above 80/100 quality is Claude Sonnet 5. It comes from Claude at $2.00 per million input tokens. Output costs $10.00 per million tokens with a quality score of 96/100. Switching from Grok 4.6 to Claude Sonnet 5 saves about -35% per API call.
Three strategies lower Grok 4.6 costs for this task type effectively. Prompt caching gives a 75% discount on input tokens when reusing system prompts. The batch API gives 50% off all tokens for asynchronous processing workloads. Prompt optimization reduces token counts through more concise instructions and context windows. Combining caching with batching brings your cost from $0.0340 to about $0.004250 per call.
Grok has 3 other models alongside Grok 4.6 today: Grok 4.5 at $2.00/$6.00 per million tokens (flagship), Grok 4.3 at $1.25/$2.50 per million tokens (mid-tier), Grok Build 0.1 at $1.00/$2.00 per million tokens (fast / budget). The right choice depends on whether your pr review workload prioritizes quality, cost, or speed.
Grok 4.6 supports a context window of 500K tokens per API call. This sets the maximum combined length of your input prompt and generated response. For pr review, typical calls use 8,000 input and 3,000 output tokens. That is well within this limit, leaving room for longer prompts or multi-turn conversations.
This calculator estimates costs based on published rates only. Connect your API usage to see where your money goes and which models drive your spend.