Grok 4.20 Multi-Agent (0309)

A multi-agent Grok 4.20 snapshot designed for coordinated reasoning across multiple agents.

Input price
$1.375
Output price
$2.75
Context
2M
Max output
128K
Modalities
InputTextImageOutputText
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1451
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Released
2026-03-09
Knowledge cutoff
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Providers

Providers that serve this model. With Auto, each request goes to the best available provider. Prices in USD per 1M tokens; stats cover the last 30 days.

Pricing

All prices for this model, by service tier.

Prompt ≤ 200K tokens

Input
$1.375
per 1M tokens
Output
$2.75
per 1M tokens
Cache read
$0.22
per 1M tokens
Reasoning output
$2.75
per 1M tokens
Web search
$0.0055
per request

Prompt > 200K tokens

Input
$2.75
per 1M tokens
Output
$5.50
per 1M tokens
Cache read
$0.44
per 1M tokens
Reasoning output
$5.50
per 1M tokens
Web search
$0.0055
per request

Make a request

Set your provider preferences, then copy the request. It reads your API key from OHMYGPT_API_KEY.

Later turns reuse the provider’s prompt cache, which can lower cost and latency.

curl https://api.ohmygpt.com/v1/responses \
  -H "Authorization: Bearer $OHMYGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "xai/grok-4.20-multi-agent-0309",
    "input": "Hello"
  }'

Similar models

Other models with the same output types at a similar price.

  • Better value: more capable, lower price
  • Pareto frontier
  • Similar models

Capability scores are from Epoch AI’s Epoch Capabilities Index (CC BY 4.0, as of 2026-11-02), which combines dozens of benchmarks with GPT-5 set at 150. epoch.ai/eci

Price: our current input price per 1M tokens in USD, lowest across channels. Dated snapshots and resold copies of the same model are merged into one point; free models are not shown.

Shaded area: capability above and price below the median of all models. Pareto frontier: no other model is both cheaper and more capable.

Grok 4.20 Multi-Agent (0309)This model
—
Input
$1.375
Output
$2.75
Grok 4.20 (0309, Non-Reasoning)
—
Input
$1.375
Output
$2.75
Mixtral 8x22B Instruct v0.1
—
Input
$1.32
Output
$1.32
Qwen2.5 72B Instruct
129
Input
$1.32
Output
$1.32
GLM-5-Code
—
Input
$1.32
Output
$5.50

Human preference ratings are from the LMArena Text Arena (CC BY 4.0, as of 2026-10-28): Elo ratings from blind votes, on a different scale from capability scores. lmarena.ai/leaderboard/text