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VERIFIED PRICEMULTI-AGENT1M CONTEXTTEXT + IMAGE INPUTPROMPT CACHING

Grok 4.20 Multi-Agent (0309) API Pricing

Grok 4.20 Multi-Agent 0309 runs several agents in parallel on one deep-research task. $1.25/M input, $2.5/M output, and $0.2/M cached input — the same per-token price as the other Grok 4.20 dated variants, over a 1M-token context window with text and image input.

Input - per 1M tokens
$1.25/M
Source SpaceXSI active
Output - per 1M tokens
$2.50/M
Use for cost checks active
Cached input
$0.20/M
Cache hit price discounted
Effective - agentic blend
$0.558/M
92/8 split - 82% cache
§ 01 / TERMINAL

Grok 4.20 Multi-Agent (0309) API cost calculator.

Calculator pre-loaded with Grok 4.20 Multi-Agent (0309) rates. Tweak spend, output mix, or cache hit rate to compare this model with nearby alternatives.

$ /mo
Workload split
Prompt cache hit rate
Tokens you can process
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Words equivalent (English)
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Effective rate
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Open full calculator (all models · share URL · CSV) →
§ 02 / SCENARIOS

Grok 4.20 Multi-Agent (0309) cost on real workloads.

AGENT LOOP

Repo-wide bug fix

$0.049/task
81k in - 7k out~2,040 units/$100
LONG DOC

Reading 100-page contracts

$0.088/doc
175k in - 8k out~1,135 units/$100
RAG SUPPORT

Support agent ticket triage

$0.00406/ticket
4k in - 1k out~24,654 units/$100
ASSISTANT TURN

Research planning turn

$0.00967/turn
12k in - 2k out~10,343 units/$100
§ 03 / TOKENIZER

Grok 4.20 Multi-Agent (0309) token counter and cost.

What's a token →
Estimate · grok-tokenizer-estimate · ≈4.2 chars/token Auto-counts as you type

This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.

Characters 277
Words 41
Tokens (estimated) 66 tokens
Cost as input · uncached $0.00008 USD
Cost as output · uncached $0.00016 USD
Cost as cached input $0.00001 USD
§ 04 / SHELF

Grok 4.20 Multi-Agent (0309) vs similar models.

All models →
Model Input /M Output /M Effective blended Context Best for
Grok 4.20 Multi-Agent (0309) Current $1.25 cache $0.20 $2.50 $0.558 agentic 92/8 1M Grok long-context agents
Grok 4.3 $1.25 cache $0.20 $2.50 $0.558 same 1M Grok long-context agents
GPT-6.1 Sol $2.00 cache $0.10 $10.00 $1.29 +2.3× 1.05M OpenAI's balanced model for coding and agents
Claude Sonnet 5.5 $2.00 cache $0.10 $10.00 $1.29 +2.3× 1M Anthropic's current Sonnet
Gemini 3.8 Flash $0.75 cache $0.075 $3.75 $0.481 −14% · promo 1M Gemini long-context work
DeepSeek V4 Pro $1.32 cache $0.044 $3.96 $0.569 same 1M Low-cost reasoning
§ 05 / DEEP LINKS

Grok 4.20 Multi-Agent (0309) cost by scenario.

All calculators →

By comparison

Compare DeepSeek → Compare Mistral → Compare Grok →

Grok 4.20 Multi-Agent (0309) API pricing FAQ.

Short answers for teams checking Grok 4.20 Multi-Agent (0309) pricing, status, and migration choices.

Q · 01 Is Grok 4.20 Multi-Agent (0309) still available? +
Grok 4.20 Multi-Agent (0309) is listed as active/current in the pricing snapshot and was checked against the vendor page used for this entry.
Q · 02 How much does Grok 4.20 Multi-Agent (0309) cost? +
Grok 4.20 Multi-Agent (0309) is listed at $1.25/M input and $2.5/M output.
Q · 03 Is cached-input pricing included? +
Yes. Cached input is shown at $0.2/M.
Q · 04 What should teams compare it against? +
Use the shelf to compare nearby current models. Snapshot replacement: current same-provider models.
Q · 05 Why keep this page? +
These pages preserve live price checks, preview economics, and migration context in one consistent calculator format.
Y
Reviewed by Yaroslav Vikhariev Founder · AI//COST · Prices checked by hand against docs.x.ai · Last verified Aug 13, 2026
Methodology Report a correction More by Y.V.