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GPT-5.1 vs MiniMax M2

GPT-5.1 leads MiniMax M2 on the Artificial Analysis Intelligence Index, 24.7 to 18.6, and MiniMax M2 costs 9.8x less per output token ($1.02 vs $10.00 per million). Updated October 22, 2026; 49 benchmarks have a result for both.

Replace GPT-5.1 Replace MiniMax M2
GPT-5.1OpenAI
Coding
40.4
Overall
55.0
Output $/M
$10.00
47
MiniMax M2MiniMax
Coding
No data
Overall
No data
Output $/M
$1.02
2
vs boards won of 49 shared

GPT-5.1 or MiniMax M2: which to pick

Only GPT-5.1 has a coding score, 40.4 on the Vibe Coding Index; MiniMax M2 has none, so the two cannot be ranked on coding.

Pick MiniMax M2 for output tokens 9.8x cheaper ($1.02 vs $10.00 per million) and a lower cost per solved task ($0.702 against $1.02).

Model AGPT-5.1OpenAI40.4/1003 independent benchmarks$1.02 per solved taskModel BMiniMax M2MiniMaxNot benchmarked1 independent benchmark$0.702 per solved task
Shared results
49
GPT-5.1 only
52
MiniMax M2 only
1
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-5.1 40.4 from 3 benchmarks, MiniMax M2 not benchmarked.
Widest category
General, 17.5 points apart on average over 17 shared benchmarks.
Widest single gap
LMArena Text: creative writing: GPT-5.1 1427 against MiniMax M2 1286, 23.6 points apart on a 0 to 100 scale.
Output price
GPT-5.1 $10.00 against MiniMax M2 $1.02 per million output tokens, 9.8x apart.
Context window
GPT-5.1 takes 400K tokens, MiniMax M2 205K.

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-5.1BarsMiniMax M2Ties
Coding80
Intelligence10
Agentic work11
Reasoning50
Math40
Knowledge50
Web design61
General170
All shared boards472
CodingLike-for-likeSix of these boards feed the Vibe Coding Index80
Coding benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
SWE-bench Verified66.0%61.0%GPT-5.1
LMArena WebDev13961297GPT-5.1
AA Coding Index49.4Not measuredOnly GPT-5.1 measured
LiveCodeBench (Vals AI)86.5%Not measuredOnly GPT-5.1 measured
SWE-bench Verified (Vals AI)69.8%Not measuredOnly GPT-5.1 measured
Vibe Code Bench (Vals AI)24.6%Not measuredOnly GPT-5.1 measured
LiveCodeBench (Artificial Analysis run)86.8%82.6%GPT-5.1
Terminal-Bench Hard (Artificial Analysis run)45.5%25.8%GPT-5.1
Terminal-Bench47.6%30.0%GPT-5.1
GSO-Bench13.7%Not measuredOnly GPT-5.1 measured
WeirdML60.8%Not measuredOnly GPT-5.1 measured
LMArena Text: coding14531371GPT-5.1
LMArena Text: software and IT14541373GPT-5.1
LMArena WebDev: React1307Not measuredOnly GPT-5.1 measured
LMArena WebDev: HTML14051306GPT-5.1
LMArena WebDev: from an image1421Not measuredOnly GPT-5.1 measured
Neither model has a result on the other 23 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
AA Intelligence Index24.718.6GPT-5.1
Epoch Capabilities Index149.8Not measuredOnly GPT-5.1 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index11
Agentic work benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
τ²-Bench Telecom81.9%86.8%MiniMax M2
DeepResearch Bench42.8%Not measuredOnly GPT-5.1 measured
Vending-Bench 2$1,473$161GPT-5.1
Neither model has a result on the other 38 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index50
Reasoning benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
GPQA Diamond86.6%Not measuredOnly GPT-5.1 measured
MMMU Pro (Vals AI)83.2%Not measuredOnly GPT-5.1 measured
GPQA Diamond (Artificial Analysis run)87.3%77.7%GPT-5.1
Humanity's Last Exam (Artificial Analysis run)28.5%13.7%GPT-5.1
GPQA Diamond (Epoch AI run)87.6%Not measuredOnly GPT-5.1 measured
ARC-AGI72.8%Not measuredOnly GPT-5.1 measured
ARC-AGI-217.6%Not measuredOnly GPT-5.1 measured
SimpleBench53.2%Not measuredOnly GPT-5.1 measured
Chess puzzles42.0%Not measuredOnly GPT-5.1 measured
Mystery game puzzles19.0%Not measuredOnly GPT-5.1 measured
VPCT58.7%Not measuredOnly GPT-5.1 measured
LMArena Text: hard prompts14571357GPT-5.1
LMArena Text: expert14701338GPT-5.1
LMArena Text: hard prompts in English14621376GPT-5.1
LMArena Vision: diagrams1264Not measuredOnly GPT-5.1 measured
LMArena Vision: homework1272Not measuredOnly GPT-5.1 measured
Kagi LLM BenchmarkNot measured57.8%Only MiniMax M2 measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
AIME93.3%Not measuredOnly GPT-5.1 measured
MGSM (Vals AI)93.0%Not measuredOnly GPT-5.1 measured
AA Math Index94.078.3GPT-5.1
AIME 2025 (Artificial Analysis run)94.0%78.3%GPT-5.1
OTIS Mock AIME88.6%Not measuredOnly GPT-5.1 measured
LMArena Text: math14461351GPT-5.1
LMArena Text: mathematical work14491368GPT-5.1
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
Knowledge benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
MMLU Pro86.4%Not measuredOnly GPT-5.1 measured
LegalBench (Vals AI)85.7%Not measuredOnly GPT-5.1 measured
CaseLaw (Vals AI)73.4%Not measuredOnly GPT-5.1 measured
CorpFin (Vals AI)63.8%Not measuredOnly GPT-5.1 measured
TaxEval (Vals AI)74.9%Not measuredOnly GPT-5.1 measured
MortgageTax (Vals AI)61.4%Not measuredOnly GPT-5.1 measured
MedQA (Vals AI)96.4%Not measuredOnly GPT-5.1 measured
MedCode (Vals AI)52.7%Not measuredOnly GPT-5.1 measured
MMLU Pro (Artificial Analysis run)87.0%82.0%GPT-5.1
SimpleQA Verified48.0%Not measuredOnly GPT-5.1 measured
LMArena Text: science14591348GPT-5.1
LMArena Text: medicine and healthcare14561367GPT-5.1
LMArena Text: legal and government14591349GPT-5.1
LMArena Text: business and finance14311336GPT-5.1
FACTS Benchmark Suite45.0%Not measuredOnly GPT-5.1 measured
Neither model has a result on the other 3 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index61
Web design benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
Design Arena: websites11871143GPT-5.1
Design Arena: UI components11631137GPT-5.1
Design Arena: game dev11781118GPT-5.1
Design Arena: data viz12041140GPT-5.1
Design Arena: 3D10601098MiniMax M2
Design Arena: all code categories11701135GPT-5.1
Design Arena: SVG11491100GPT-5.1
Design Arena: ASCII art1119Not measuredOnly GPT-5.1 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index170
General benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
SAGE (Vals AI)43.2%Not measuredOnly GPT-5.1 measured
MedScribe (Vals AI)88.1%Not measuredOnly GPT-5.1 measured
IFBench72.9%72.3%GPT-5.1
Long context reasoning (AA-LCR)80.0%64.3%GPT-5.1
DTBench90.1%Not measuredOnly GPT-5.1 measured
LMCA43.9%Not measuredOnly GPT-5.1 measured
CL-bench23.7%Not measuredOnly GPT-5.1 measured
CL-bench Life17.3%Not measuredOnly GPT-5.1 measured
LMArena Text14431340GPT-5.1
LMArena Text: instruction following14431329GPT-5.1
LMArena Text: creative writing14271286GPT-5.1
LMArena Vision1250Not measuredOnly GPT-5.1 measured
LMArena Text: English14511364GPT-5.1
LMArena Text: non-English14311313GPT-5.1
LMArena Text: Chinese14951366GPT-5.1
LMArena Text: German14381357GPT-5.1
LMArena Text: Japanese1453Not measuredOnly GPT-5.1 measured
LMArena Text: Korean1401Not measuredOnly GPT-5.1 measured
LMArena Text: French14501336GPT-5.1
LMArena Text: Spanish14331326GPT-5.1
LMArena Text: Russian14351330GPT-5.1
LMArena Text: Polish14401312GPT-5.1
LMArena Text: multi-turn14501361GPT-5.1
LMArena Text: longer queries14481331GPT-5.1
LMArena Text: writing and language14281295GPT-5.1
LMArena Text: entertainment and media14151298GPT-5.1
LMArena Vision: English1252Not measuredOnly GPT-5.1 measured
LMArena Vision: Chinese1270Not measuredOnly GPT-5.1 measured
LMArena Vision: reading text1255Not measuredOnly GPT-5.1 measured
LMArena Vision: humor1263Not measuredOnly GPT-5.1 measured
LMArena Vision: captioning1252Not measuredOnly GPT-5.1 measured
LMArena Vision: recognizing things1232Not measuredOnly GPT-5.1 measured
LMArena Vision: creative writing1266Not measuredOnly GPT-5.1 measured
LMArena Document1403Not measuredOnly GPT-5.1 measured
Neither model has a result on the other 12 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5.1 and MiniMax M2
BenchmarkGPT-5.1MiniMax M2Leader
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-5.1$0.0063Fits in one request
MiniMax M2$0.0008Fits in one request

MiniMax M2 costs less

Repository review

50K input + 3K output tokens

GPT-5.1$0.092Fits in one request
MiniMax M2$0.016Fits in one request

MiniMax M2 costs less

Agent loop

200K input + 10K output tokens

GPT-5.1$0.350Fits in one request
MiniMax M2$0.061Exceeds the context window

MiniMax M2 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-5.1 and MiniMax M2
SpecificationOpenAI GPT-5.1MiniMax M2
MakerOpenAIMiniMax
WeightsNo public weights listedOpen weights
ReleasedNovember 13, 2025October 23, 2025
Context window400K205K
Input $/Mtok$1.25$0.255
Output $/Mtok$10.00$1.02
Coding index40.4Not benchmarked
Independent measurements behind it31
Cost per solved task$1.02$0.702
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.1 better than MiniMax M2 for coding?

Only GPT-5.1 has a coding score, 40.4 on the Vibe Coding Index; MiniMax M2 has none, so the two cannot be ranked on coding. Pick MiniMax M2 for output tokens 9.8x cheaper ($1.02 vs $10.00 per million) and a lower cost per solved task ($0.702 against $1.02).

Which is cheaper, GPT-5.1 or MiniMax M2?

GPT-5.1 costs $1.25 per million input tokens and $10.00 per million output tokens; MiniMax M2 costs $0.255 and $1.02. Per solved SWE-bench Verified task, GPT-5.1 costs $1.02 and MiniMax M2 $0.702.

Which has the bigger context window, GPT-5.1 or MiniMax M2?

GPT-5.1, with 400K tokens against 205K.

How many benchmarks is the GPT-5.1 vs MiniMax M2 comparison based on?

49 benchmarks have a result for both models as of October 22, 2026. GPT-5.1's coding index rests on 3 independent benchmarks and MiniMax M2's on 1. Where only one model has a result, the page says so instead of naming a winner.

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