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Grok 4.20 Multi-Agent vs o3 Mini High

Updated October 21, 2026. 0 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Grok 4.20 Multi-Agent Replace o3 Mini High
Grok 4.20 Multi-AgentxAI
Coding
No data
Overall
No data
Output $/M
$2.50
o3 Mini HighOpenAI
Coding
No data
Overall
11.0
Output $/M
$4.40
vs $2.50 vs $4.40 per 1M output tokens. Grok 4.20 Multi-Agent is 1.8x cheaper.

Decision reading

Neither model has a coding score yet, so the two cannot be ranked on coding.

Grok 4.20 Multi-Agent has the edge where output tokens cost 1.8x less, and where the context window is larger, 2M against 200K tokens.

Model AGrok 4.20 Multi-AgentxAINot benchmarkedNo coding benchmarkNo cost per solved taskModel Bo3 Mini HighOpenAINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
0
Grok 4.20 Multi-Agent only
0
o3 Mini High only
3
Like-for-like categories
0 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Grok 4.20 Multi-Agent not benchmarked, o3 Mini High not benchmarked.
Widest category
No category has a result for both models.
Widest single gap
No benchmark has a result for both models.
Output price
Grok 4.20 Multi-Agent $2.50 against o3 Mini High $4.40 per million output tokens, 1.8x apart.
Context window
Grok 4.20 Multi-Agent takes 2M tokens, o3 Mini High 200K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

CodingDirectional onlySix of these boards feed the Vibe Coding Index1 board, none shared
Coding benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
AA Coding IndexNot measured16.3Only o3 Mini High measured
Neither model has a result on the other 37 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
Intelligence benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
AA Intelligence IndexNot measured11.0Only o3 Mini High measured
Neither model has a result on the other 1 board here
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
Agentic work benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
AA Agentic IndexNot measured0.9Only o3 Mini High measured
Neither model has a result on the other 38 boards here
ReasoningNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Reasoning benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
Neither model has a result on 21 boards here
MathNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Math benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
Neither model has a result on 13 boards here
KnowledgeNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Knowledge benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
Neither model has a result on 17 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
Neither model has a result on 9 boards here
GeneralNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
General benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
Neither model has a result on 46 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Grok 4.20 Multi-Agent and o3 Mini High
BenchmarkGrok 4.20 Multi-Agento3 Mini HighLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Grok 4.20 Multi-Agent$0.0025Fits in one request
o3 Mini High$0.0033Fits in one request

Grok 4.20 Multi-Agent costs less

Repository review

50K input + 3K output tokens

Grok 4.20 Multi-Agent$0.070Fits in one request
o3 Mini High$0.068Fits in one request

o3 Mini High costs less

Agent loop

200K input + 10K output tokens

Grok 4.20 Multi-Agent$0.275Fits in one request
o3 Mini High$0.264Exceeds the context window

o3 Mini High costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Grok 4.20 Multi-Agent and o3 Mini High
SpecificationSpaceXAI Grok 4.20 Multi-AgentOpenAI o3 Mini High
MakerxAIOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedMarch 31, 2026February 12, 2025
Context window2M200K
Input $/Mtok$1.25$1.10
Output $/Mtok$2.50$4.40
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Grok 4.20 Multi-Agent better than o3 Mini High for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Grok 4.20 Multi-Agent has the edge where output tokens cost 1.8x less, and where the context window is larger, 2M against 200K tokens.

Which is cheaper, Grok 4.20 Multi-Agent or o3 Mini High?

Grok 4.20 Multi-Agent costs $1.25 per million input tokens and $2.50 per million output tokens; o3 Mini High costs $1.10 and $4.40. Cost per solved task is known for neither of them.

Which has the bigger context window, Grok 4.20 Multi-Agent or o3 Mini High?

Grok 4.20 Multi-Agent, with 2M tokens against 200K.

How many benchmarks is the Grok 4.20 Multi-Agent vs o3 Mini High comparison based on?

0 benchmarks have a result for both models as of October 21, 2026. Grok 4.20 Multi-Agent's coding index rests on 0 independent benchmarks and o3 Mini High's on 0. Where only one model has a result, the page says so instead of naming a winner.

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