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GPT-5.6 Terra vs MiniMax M3

GPT-5.6 Terra leads MiniMax M3 on coding, 63.9 to 39.2 on the Vibe Coding Index, and MiniMax M3 costs 10.0x less per output token ($1.20 vs $12.00 per million). Updated October 22, 2026; 113 benchmarks have a result for both.

Replace GPT-5.6 Terra Replace MiniMax M3
GPT-5.6 TerraOpenAI
Coding
63.9
Overall
68.1
Output $/M
$12.00
90
MiniMax M3MiniMax
Coding
39.2
Overall
51.7
Output $/M
$1.20
22
vs boards won of 113 shared, 1 tied

GPT-5.6 Terra or MiniMax M3: which to pick

Pick GPT-5.6 Terra for coding: it scores 63.9 on the Vibe Coding Index against 39.2 for MiniMax M3.

Pick MiniMax M3 for output tokens 10.0x cheaper ($1.20 vs $12.00 per million) and work measured by Design Arena: agents building web apps or Design Arena: agents building full-stack apps, where it leads.

Model AGPT-5.6 TerraOpenAI63.9/1006 independent benchmarks$0.42 per solved taskModel BMiniMax M3MiniMax39.2/1006 independent benchmarks$0.56 per solved task
Shared results
113
GPT-5.6 Terra only
16
MiniMax M3 only
4
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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
GPT-5.6 Terra 63.9 from 6 benchmarks, MiniMax M3 39.2 from 6 benchmarks.
Widest category
Math, 23.9 points apart on average over 4 shared benchmarks.
Widest single gap
LiveBench browser: GPT-5.6 Terra 84.0% against MiniMax M3 8.0%, 76.0 points apart on a 0 to 100 scale.
Output price
GPT-5.6 Terra $12.00 against MiniMax M3 $1.20 per million output tokens, 10.0x apart.
Context window
GPT-5.6 Terra takes 1.05M tokens, MiniMax M3 1.05M.

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.

Boards won, where both have a result
CategoryGPT-5.6 TerraBarsMiniMax M3Ties
Coding210
Intelligence20
Agentic work99
Reasoning122
Math40
Knowledge55
Web design72
General3041 tie
All shared boards90221 tie
CodingLike-for-likeSix of these boards feed the Vibe Coding Index210
Coding benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
LiveBench coding86.2%70.9%GPT-5.6 Terra
LMArena WebDev15221482GPT-5.6 Terra
AA Coding Index76.758.6GPT-5.6 Terra
LiveCodeBench (Vals AI)85.9%82.2%GPT-5.6 Terra
SWE-bench Verified (Vals AI)95.4%75.0%GPT-5.6 Terra
Terminal-Bench 4 (Vals AI)22.7%1.0%GPT-5.6 Terra
Vibe Code Bench (Vals AI)74.6%47.6%GPT-5.6 Terra
Code migration (Vals AI)47.8%19.9%GPT-5.6 Terra
ProgramBench (Vals AI)0.5%Not measuredOnly GPT-5.6 Terra measured
IOI (Vals AI)87.6%Not measuredOnly GPT-5.6 Terra measured
Terminal-Bench 2.1 (Vals AI)77.5%53.6%GPT-5.6 Terra
SWE-bench Multimodal (Vals AI)Not measured33.3%Only MiniMax M3 measured
Vibe Code Bench 1-100 (Vals AI)14.8%9.2%GPT-5.6 Terra
SkillsBench (Vals AI)58.9%51.5%GPT-5.6 Terra
CyberBench (Vals AI)72.1%65.0%GPT-5.6 Terra
SciCode55.0%47.1%GPT-5.6 Terra
Terminal-Bench Hard (Artificial Analysis run)62.9%42.4%GPT-5.6 Terra
FrontierCode41.3%14.7%GPT-5.6 Terra
WeirdML78.3%Not measuredOnly GPT-5.6 Terra measured
ALE-Bench1951.4640.0GPT-5.6 Terra
LMArena Text: coding14851470GPT-5.6 Terra
LMArena Text: software and IT14821466GPT-5.6 Terra
LMArena WebDev: React15131478GPT-5.6 Terra
LMArena WebDev: HTML15261455GPT-5.6 Terra
LMArena WebDev: from an image15411470GPT-5.6 Terra
SciCode10.8%Not measuredOnly GPT-5.6 Terra measured
SWE-Bench Pro V292.4%Not measuredOnly GPT-5.6 Terra measured
Neither model has a result on the other 16 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
AA Intelligence Index42.129.2GPT-5.6 Terra
Epoch Capabilities Index160.1146.9GPT-5.6 Terra
Agentic workLike-for-likePublic boards, shown as published, kept out of the index99
Agentic work benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
AA Agentic Index43.229.5GPT-5.6 Terra
Design Arena: agents building web apps11201200MiniMax M3
Design Arena: agents building full-stack apps10611197MiniMax M3
Design Arena: agents building mobile apps11101169MiniMax M3
Design Arena: agents building Android apps10601158MiniMax M3
Design Arena: agents building games10831159MiniMax M3
Design Arena: HTML slides10471120MiniMax M3
Design Arena: PowerPoint slides11041178MiniMax M3
Design Arena: spreadsheetsNot measured1042Only MiniMax M3 measured
LiveBench research60.4%68.0%MiniMax M3
LiveBench browser84.0%8.0%GPT-5.6 Terra
LiveBench long agentic48.4%12.4%GPT-5.6 Terra
SREBench (Vals AI)9.5%Not measuredOnly GPT-5.6 Terra measured
Finance Agent (Vals AI)54.4%48.3%GPT-5.6 Terra
Tax Agent Bench (Vals AI)30.0%20.6%GPT-5.6 Terra
Legal Research Bench (Vals AI)41.4%29.8%GPT-5.6 Terra
Excel Modeling Benchmark (Vals AI)66.2%47.8%GPT-5.6 Terra
Terminal-Bench-Science (Vals AI)10.0%Not measuredOnly GPT-5.6 Terra measured
τ²-Bench Telecom86.3%88.9%MiniMax M3
APEX-Agents58.2%37.7%GPT-5.6 Terra
OSWorld 2.0Not measured4.6%Only MiniMax M3 measured
BALROG53.2%Not measuredOnly GPT-5.6 Terra measured
Vending-Bench 2$7,343$2,158GPT-5.6 Terra
Neither model has a result on the other 19 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index122
Reasoning benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
GPQA Diamond90.9%92.7%MiniMax M3
LiveBench reasoning90.6%74.5%GPT-5.6 Terra
MMMU Pro (Vals AI)86.5%81.2%GPT-5.6 Terra
GPQA Diamond (Artificial Analysis run)92.5%92.9%MiniMax M3
Humanity's Last Exam (Artificial Analysis run)42.9%39.0%GPT-5.6 Terra
GPQA Diamond (Epoch AI run)93.3%90.9%GPT-5.6 Terra
ARC-AGI96.5%Not measuredOnly GPT-5.6 Terra measured
ARC-AGI-283.9%Not measuredOnly GPT-5.6 Terra measured
SimpleBench48.9%45.8%GPT-5.6 Terra
Chess puzzles47.0%13.0%GPT-5.6 Terra
Mystery game puzzles35.0%8.0%GPT-5.6 Terra
LMArena Text: hard prompts14691447GPT-5.6 Terra
LMArena Text: expert14961461GPT-5.6 Terra
LMArena Text: hard prompts in English14651455GPT-5.6 Terra
LMArena Vision: diagrams12951266GPT-5.6 Terra
LMArena Vision: homework13121268GPT-5.6 Terra
Kagi LLM Benchmark51.3%Not measuredOnly GPT-5.6 Terra measured
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
OTIS Mock AIME99.7%71.1%GPT-5.6 Terra
FrontierMath, tiers 1 to 386.0%Not measuredOnly GPT-5.6 Terra measured
FrontierMath, tier 470.7%Not measuredOnly GPT-5.6 Terra measured
ProofBench74.0%18.0%GPT-5.6 Terra
LMArena Text: math14651429GPT-5.6 Terra
LMArena Text: mathematical work14781448GPT-5.6 Terra
Neither model has a result on the other 8 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index55
Knowledge benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
MMLU Pro86.7%84.2%GPT-5.6 Terra
LegalBench (Vals AI)85.1%85.4%MiniMax M3
CorpFin (Vals AI)65.3%68.1%MiniMax M3
TaxEval (Vals AI)76.2%72.7%GPT-5.6 Terra
MortgageTax (Vals AI)67.3%68.4%MiniMax M3
MedCode (Vals AI)43.4%46.3%MiniMax M3
SimpleQA Verified43.2%Not measuredOnly GPT-5.6 Terra measured
LMArena Text: science14521452GPT-5.6 Terra
LMArena Text: medicine and healthcare14301441MiniMax M3
LMArena Text: legal and government14611437GPT-5.6 Terra
LMArena Text: business and finance14481434GPT-5.6 Terra
FACTS Benchmark Suite52.0%Not measuredOnly GPT-5.6 Terra measured
Neither model has a result on the other 8 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index72
Web design benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
Design Arena: websites12681257GPT-5.6 Terra
Design Arena: UI components12561243GPT-5.6 Terra
Design Arena: game dev12291210GPT-5.6 Terra
Design Arena: data viz12401236GPT-5.6 Terra
Design Arena: 3D11341208MiniMax M3
Design Arena: all code categories12401246MiniMax M3
Design Arena: SVG12191160GPT-5.6 Terra
Design Arena: ASCII art11781161GPT-5.6 Terra
LiveBench design76.0%66.2%GPT-5.6 Terra
GeneralLike-for-likePublic boards, shown as published, kept out of the index304
General benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
LiveBench data analysis79.3%76.2%GPT-5.6 Terra
Public Benefits Bench (Vals AI)62.4%64.1%MiniMax M3
SAGE (Vals AI)47.0%50.6%MiniMax M3
MedScribe (Vals AI)82.9%87.3%MiniMax M3
Vals Multimodal Index65.1%60.0%GPT-5.6 Terra
IFBench71.2%82.9%MiniMax M3
Long context reasoning (AA-LCR)83.0%83.0%Tie
DTBench93.3%78.9%GPT-5.6 Terra
LMCA54.9%33.7%GPT-5.6 Terra
Surface Evolver Bench83.8%55.0%GPT-5.6 Terra
Furniture assembly54.2%Not measuredOnly GPT-5.6 Terra measured
LMArena Text14481433GPT-5.6 Terra
LMArena Text: instruction following14561433GPT-5.6 Terra
LMArena Text: creative writing14131404GPT-5.6 Terra
LMArena Vision12711251GPT-5.6 Terra
LMArena Text: English14491443GPT-5.6 Terra
LMArena Text: non-English14411420GPT-5.6 Terra
LMArena Text: Chinese15141466GPT-5.6 Terra
LMArena Text: German14601428GPT-5.6 Terra
LMArena Text: Japanese14541380GPT-5.6 Terra
LMArena Text: Korean14271373GPT-5.6 Terra
LMArena Text: French14661444GPT-5.6 Terra
LMArena Text: Spanish14511433GPT-5.6 Terra
LMArena Text: Russian14521426GPT-5.6 Terra
LMArena Text: Polish14461423GPT-5.6 Terra
LMArena Text: multi-turn14531443GPT-5.6 Terra
LMArena Text: longer queries14541446GPT-5.6 Terra
LMArena Text: writing and language14311419GPT-5.6 Terra
LMArena Text: entertainment and media14181403GPT-5.6 Terra
LMArena Vision: English12721263GPT-5.6 Terra
LMArena Vision: Chinese13371311GPT-5.6 Terra
LMArena Vision: reading text12781259GPT-5.6 Terra
LMArena Vision: humor12361235GPT-5.6 Terra
LMArena Vision: recognizing thingsNot measured1197Only MiniMax M3 measured
LMArena Vision: creative writing12481234GPT-5.6 Terra
LMArena Document14721435GPT-5.6 Terra
EQ-Bench 412341150GPT-5.6 Terra
Neither model has a result on the other 11 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5.6 Terra and MiniMax M3
BenchmarkGPT-5.6 TerraMiniMax M3Leader
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

GPT-5.6 Terra$0.0080Fits in one request
MiniMax M3$0.0009Fits in one request

MiniMax M3 costs less

Repository review

50K input + 3K output tokens

GPT-5.6 Terra$0.136Fits in one request
MiniMax M3$0.019Fits in one request

MiniMax M3 costs less

Agent loop

200K input + 10K output tokens

GPT-5.6 Terra$0.520Fits in one request
MiniMax M3$0.072Fits in one request

MiniMax M3 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 GPT-5.6 Terra and MiniMax M3
SpecificationOpenAI GPT-5.6 TerraMiniMax M3
MakerOpenAIMiniMax
WeightsNo public weights listedOpen weights
ReleasedJuly 9, 2026May 31, 2026
Context window1.05M1.05M
Input $/Mtok$2.00$0.30
Output $/Mtok$12.00$1.20
Coding index63.939.2
Independent measurements behind it66
Cost per solved task$0.42$0.56
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.6 Terra better than MiniMax M3 for coding?

Pick GPT-5.6 Terra for coding: it scores 63.9 on the Vibe Coding Index against 39.2 for MiniMax M3. Pick MiniMax M3 for output tokens 10.0x cheaper ($1.20 vs $12.00 per million) and work measured by Design Arena: agents building web apps or Design Arena: agents building full-stack apps, where it leads.

Which is cheaper, GPT-5.6 Terra or MiniMax M3?

GPT-5.6 Terra costs $2.00 per million input tokens and $12.00 per million output tokens; MiniMax M3 costs $0.30 and $1.20. Per solved SWE-bench Verified task, GPT-5.6 Terra costs $0.42 and MiniMax M3 $0.56.

Which has the bigger context window, GPT-5.6 Terra or MiniMax M3?

GPT-5.6 Terra, with 1.05M tokens against 1.05M.

How many benchmarks is the GPT-5.6 Terra vs MiniMax M3 comparison based on?

113 benchmarks have a result for both models as of October 22, 2026. GPT-5.6 Terra's coding index rests on 6 independent benchmarks and MiniMax M3's on 6. Where only one model has a result, the page says so instead of naming a winner.

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