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GPT-5.6 Terra vs MiMo-V2.5-Pro

GPT-5.6 Terra leads MiMo-V2.5-Pro on coding, 63.9 to 31.6 on the Vibe Coding Index, and MiMo-V2.5-Pro costs 13.1x less per output token ($0.9152 vs $12.00 per million). Updated October 22, 2026; 70 benchmarks have a result for both.

Replace GPT-5.6 Terra Replace MiMo-V2.5-Pro
GPT-5.6 TerraOpenAI
Coding
63.9
Overall
68.1
Output $/M
$12.00
39
MiMo-V2.5-ProXiaomi
Coding
31.6
Overall
39.3
Output $/M
$0.9152
31
vs boards won of 70 shared

GPT-5.6 Terra or MiMo-V2.5-Pro: which to pick

Pick GPT-5.6 Terra for coding: it scores 63.9 on the Vibe Coding Index against 31.6 for MiMo-V2.5-Pro.

Pick MiMo-V2.5-Pro for output tokens 13.1x cheaper ($0.9152 vs $12.00 per million) and a lower cost per solved task ($0.03 against $0.42).

Model AGPT-5.6 TerraOpenAI63.9/1006 independent benchmarks$0.42 per solved taskModel BMiMo-V2.5-ProXiaomi31.6/1004 independent benchmarks$0.03 per solved task
Shared results
70
GPT-5.6 Terra only
57
MiMo-V2.5-Pro only
0
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, MiMo-V2.5-Pro 31.6 from 4 benchmarks.
Widest category
Math, 18.9 points apart on average over 3 shared benchmarks.
Widest single gap
ProofBench: GPT-5.6 Terra 74.0% against MiMo-V2.5-Pro 22.0%, 52.0 points apart on a 0 to 100 scale.
Output price
GPT-5.6 Terra $12.00 against MiMo-V2.5-Pro $0.9152 per million output tokens, 13.1x apart.
Context window
Both take 1.05M tokens.

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 TerraBarsMiMo-V2.5-ProTies
Coding132
Intelligence10
Agentic work51
Reasoning33
Math12
Knowledge54
Web design44
General715
All shared boards3931
CodingLike-for-likeSix of these boards feed the Vibe Coding Index132
Coding benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
LiveBench coding86.2%Not measuredOnly GPT-5.6 Terra measured
LMArena WebDev15221480GPT-5.6 Terra
AA Coding Index76.760.2GPT-5.6 Terra
LiveCodeBench (Vals AI)85.9%81.3%GPT-5.6 Terra
SWE-bench Verified (Vals AI)95.4%74.0%GPT-5.6 Terra
Terminal-Bench 4 (Vals AI)22.7%0.5%GPT-5.6 Terra
Vibe Code Bench (Vals AI)74.6%34.1%GPT-5.6 Terra
Code migration (Vals AI)47.8%21.6%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%57.3%GPT-5.6 Terra
Vibe Code Bench 1-100 (Vals AI)14.8%Not measuredOnly GPT-5.6 Terra measured
SkillsBench (Vals AI)58.9%Not measuredOnly GPT-5.6 Terra measured
CyberBench (Vals AI)72.1%Not measuredOnly GPT-5.6 Terra measured
SciCode55.0%50.6%GPT-5.6 Terra
Terminal-Bench Hard (Artificial Analysis run)62.9%43.2%GPT-5.6 Terra
FrontierCode41.3%Not measuredOnly GPT-5.6 Terra measured
WeirdML78.3%Not measuredOnly GPT-5.6 Terra measured
ALE-Bench1951.4899.8GPT-5.6 Terra
LMArena Text: coding14851501MiMo-V2.5-Pro
LMArena Text: software and IT14821495MiMo-V2.5-Pro
LMArena WebDev: React15131469GPT-5.6 Terra
LMArena WebDev: HTML15261473GPT-5.6 Terra
LMArena WebDev: from an image1541Not measuredOnly GPT-5.6 Terra measured
SciCode10.8%Not measuredOnly GPT-5.6 Terra measured
Neither model has a result on the other 14 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
AA Intelligence Index42.126.0GPT-5.6 Terra
Epoch Capabilities Index160.1Not measuredOnly GPT-5.6 Terra measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index51
Agentic work benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
AA Agentic Index43.221.3GPT-5.6 Terra
Design Arena: agents building web apps1120Not measuredOnly GPT-5.6 Terra measured
Design Arena: agents building full-stack apps1061Not measuredOnly GPT-5.6 Terra measured
Design Arena: agents building mobile apps1111Not measuredOnly GPT-5.6 Terra measured
Design Arena: agents building Android apps1062Not measuredOnly GPT-5.6 Terra measured
Design Arena: agents building games1083Not measuredOnly GPT-5.6 Terra measured
Design Arena: HTML slides1058Not measuredOnly GPT-5.6 Terra measured
Design Arena: PowerPoint slides1105Not measuredOnly GPT-5.6 Terra measured
LiveBench research60.4%Not measuredOnly GPT-5.6 Terra measured
LiveBench browser84.0%Not measuredOnly GPT-5.6 Terra measured
LiveBench long agentic48.4%Not measuredOnly GPT-5.6 Terra measured
SREBench (Vals AI)9.5%Not measuredOnly GPT-5.6 Terra measured
Finance Agent (Vals AI)54.4%41.5%GPT-5.6 Terra
Tax Agent Bench (Vals AI)30.0%11.5%GPT-5.6 Terra
Legal Research Bench (Vals AI)41.4%15.9%GPT-5.6 Terra
Excel Modeling Benchmark (Vals AI)66.2%55.2%GPT-5.6 Terra
Terminal-Bench-Science (Vals AI)10.0%Not measuredOnly GPT-5.6 Terra measured
τ²-Bench Telecom86.3%94.2%MiMo-V2.5-Pro
APEX-Agents58.2%Not measuredOnly GPT-5.6 Terra measured
BALROG53.2%Not measuredOnly GPT-5.6 Terra measured
Vending-Bench 2$7,343Not measuredOnly GPT-5.6 Terra measured
Neither model has a result on the other 20 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index33
Reasoning benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
GPQA Diamond90.9%82.6%GPT-5.6 Terra
LiveBench reasoning90.6%Not measuredOnly GPT-5.6 Terra measured
MMMU Pro (Vals AI)86.5%Not measuredOnly GPT-5.6 Terra measured
GPQA Diamond (Artificial Analysis run)92.5%86.6%GPT-5.6 Terra
Humanity's Last Exam (Artificial Analysis run)42.9%35.7%GPT-5.6 Terra
GPQA Diamond (Epoch AI run)93.3%Not measuredOnly GPT-5.6 Terra measured
ARC-AGI96.5%Not measuredOnly GPT-5.6 Terra measured
ARC-AGI-283.9%Not measuredOnly GPT-5.6 Terra measured
SimpleBench48.9%Not measuredOnly GPT-5.6 Terra measured
Chess puzzles47.0%Not measuredOnly GPT-5.6 Terra measured
Mystery game puzzles35.0%Not measuredOnly GPT-5.6 Terra measured
LMArena Text: hard prompts14691486MiMo-V2.5-Pro
LMArena Text: expert14961501MiMo-V2.5-Pro
LMArena Text: hard prompts in English14651494MiMo-V2.5-Pro
LMArena Vision: diagrams1295Not measuredOnly GPT-5.6 Terra measured
LMArena Vision: homework1312Not measuredOnly GPT-5.6 Terra measured
Kagi LLM Benchmark51.3%Not measuredOnly GPT-5.6 Terra measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index12
Math benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
OTIS Mock AIME99.7%Not measuredOnly GPT-5.6 Terra measured
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%22.0%GPT-5.6 Terra
LMArena Text: math14651481MiMo-V2.5-Pro
LMArena Text: mathematical work14781491MiMo-V2.5-Pro
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index54
Knowledge benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
MMLU Pro86.7%84.6%GPT-5.6 Terra
LegalBench (Vals AI)85.1%77.1%GPT-5.6 Terra
CorpFin (Vals AI)65.3%61.4%GPT-5.6 Terra
TaxEval (Vals AI)76.2%73.8%GPT-5.6 Terra
MortgageTax (Vals AI)67.3%Not measuredOnly GPT-5.6 Terra measured
MedCode (Vals AI)43.4%32.5%GPT-5.6 Terra
SimpleQA Verified43.2%Not measuredOnly GPT-5.6 Terra measured
LMArena Text: science14521482MiMo-V2.5-Pro
LMArena Text: medicine and healthcare14301473MiMo-V2.5-Pro
LMArena Text: legal and government14611474MiMo-V2.5-Pro
LMArena Text: business and finance14481466MiMo-V2.5-Pro
FACTS Benchmark Suite52.0%Not measuredOnly GPT-5.6 Terra measured
Neither model has a result on the other 6 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index44
Web design benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
Design Arena: websites12681266GPT-5.6 Terra
Design Arena: UI components12561246GPT-5.6 Terra
Design Arena: game dev12291261MiMo-V2.5-Pro
Design Arena: data viz12401257MiMo-V2.5-Pro
Design Arena: 3D11341243MiMo-V2.5-Pro
Design Arena: all code categories12411265MiMo-V2.5-Pro
Design Arena: SVG12191181GPT-5.6 Terra
Design Arena: ASCII art11771156GPT-5.6 Terra
LiveBench design76.0%Not measuredOnly GPT-5.6 Terra measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index715
General benchmarks for GPT-5.6 Terra and MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
LiveBench data analysis79.3%Not measuredOnly GPT-5.6 Terra measured
Public Benefits Bench (Vals AI)62.4%Not measuredOnly GPT-5.6 Terra measured
SAGE (Vals AI)47.0%Not measuredOnly GPT-5.6 Terra measured
MedScribe (Vals AI)82.9%83.7%MiMo-V2.5-Pro
Vals Multimodal Index65.1%Not measuredOnly GPT-5.6 Terra measured
IFBench71.2%79.9%MiMo-V2.5-Pro
Long context reasoning (AA-LCR)83.0%79.7%GPT-5.6 Terra
DTBench93.3%84.5%GPT-5.6 Terra
LMCA54.9%29.5%GPT-5.6 Terra
Surface Evolver Bench83.8%Not measuredOnly GPT-5.6 Terra measured
Furniture assembly54.2%Not measuredOnly GPT-5.6 Terra measured
LMArena Text14481464MiMo-V2.5-Pro
LMArena Text: instruction following14561475MiMo-V2.5-Pro
LMArena Text: creative writing14131438MiMo-V2.5-Pro
LMArena Vision1271Not measuredOnly GPT-5.6 Terra measured
LMArena Text: English14491477MiMo-V2.5-Pro
LMArena Text: non-English14411448MiMo-V2.5-Pro
LMArena Text: Chinese15141507GPT-5.6 Terra
LMArena Text: German14601459GPT-5.6 Terra
LMArena Text: Japanese14541410GPT-5.6 Terra
LMArena Text: Korean14271435MiMo-V2.5-Pro
LMArena Text: French14661487MiMo-V2.5-Pro
LMArena Text: Spanish14511469MiMo-V2.5-Pro
LMArena Text: Russian14521449GPT-5.6 Terra
LMArena Text: Polish14461464MiMo-V2.5-Pro
LMArena Text: multi-turn14531476MiMo-V2.5-Pro
LMArena Text: longer queries14541481MiMo-V2.5-Pro
LMArena Text: writing and language14311451MiMo-V2.5-Pro
LMArena Text: entertainment and media14181438MiMo-V2.5-Pro
LMArena Vision: English1272Not measuredOnly GPT-5.6 Terra measured
LMArena Vision: Chinese1337Not measuredOnly GPT-5.6 Terra measured
LMArena Vision: reading text1278Not measuredOnly GPT-5.6 Terra measured
LMArena Vision: humor1236Not measuredOnly GPT-5.6 Terra measured
LMArena Vision: creative writing1248Not measuredOnly GPT-5.6 Terra measured
LMArena Document1472Not measuredOnly GPT-5.6 Terra measured
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 MiMo-V2.5-Pro
BenchmarkGPT-5.6 TerraMiMo-V2.5-ProLeader
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
MiMo-V2.5-Pro$0.0009Fits in one request

MiMo-V2.5-Pro costs less

Repository review

50K input + 3K output tokens

GPT-5.6 Terra$0.136Fits in one request
MiMo-V2.5-Pro$0.026Fits in one request

MiMo-V2.5-Pro costs less

Agent loop

200K input + 10K output tokens

GPT-5.6 Terra$0.520Fits in one request
MiMo-V2.5-Pro$0.101Fits in one request

MiMo-V2.5-Pro 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 MiMo-V2.5-Pro
SpecificationOpenAI GPT-5.6 TerraXiaomi MiMo-V2.5-Pro
MakerOpenAIXiaomi
WeightsNo public weights listedOpen weights
ReleasedJuly 9, 2026April 22, 2026
Context window1.05M1.05M
Input $/Mtok$2.00$0.4575
Output $/Mtok$12.00$0.9152
Coding index63.931.6
Independent measurements behind it64
Cost per solved task$0.42$0.03
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.6 Terra better than MiMo-V2.5-Pro for coding?

Pick GPT-5.6 Terra for coding: it scores 63.9 on the Vibe Coding Index against 31.6 for MiMo-V2.5-Pro. Pick MiMo-V2.5-Pro for output tokens 13.1x cheaper ($0.9152 vs $12.00 per million) and a lower cost per solved task ($0.03 against $0.42).

Which is cheaper, GPT-5.6 Terra or MiMo-V2.5-Pro?

GPT-5.6 Terra costs $2.00 per million input tokens and $12.00 per million output tokens; MiMo-V2.5-Pro costs $0.4575 and $0.9152. Per solved SWE-bench Verified task, GPT-5.6 Terra costs $0.42 and MiMo-V2.5-Pro $0.03.

Which has the bigger context window, GPT-5.6 Terra or MiMo-V2.5-Pro?

Neither: both take 1.05M tokens.

How many benchmarks is the GPT-5.6 Terra vs MiMo-V2.5-Pro comparison based on?

70 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 MiMo-V2.5-Pro's on 4. Where only one model has a result, the page says so instead of naming a winner.

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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/gpt-5-6-terra-vs-xiaomi-mimo-v2-5-pro">LLMBenchmark.ai, GPT-5.6 Terra vs MiMo-V2.5-Pro</a></p>