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Nova 2 Lite vs GPT-5.1

GPT-5.1 leads Nova 2 Lite on the Artificial Analysis Intelligence Index, 24.7 to 13.4, and Nova 2 Lite costs 4.0x less per output token ($2.50 vs $10.00 per million). Updated October 21, 2026; 30 benchmarks have a result for both.

Replace Nova 2 Lite Replace GPT-5.1
Nova 2 LiteAmazon
Coding
No data
Overall
No data
Output $/M
$2.50
0
GPT-5.1OpenAI
Coding
40.4
Overall
55.0
Output $/M
$10.00
30
vs boards won of 30 shared

Nova 2 Lite or GPT-5.1: which to pick

Only GPT-5.1 has a coding score, 40.4 on the Vibe Coding Index; Nova 2 Lite has none, so the two cannot be ranked on coding.

Pick Nova 2 Lite for output tokens 4.0x cheaper ($2.50 vs $10.00 per million) and a larger context window (1M against 400K tokens).

Model ANova 2 LiteAmazonNot benchmarkedNo coding benchmarkNo cost per solved taskModel BGPT-5.1OpenAI40.4/1003 independent benchmarks$1.02 per solved task
Shared results
30
Nova 2 Lite only
1
GPT-5.1 only
71
Like-for-like categories
6 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
Nova 2 Lite not benchmarked, GPT-5.1 40.4 from 3 benchmarks.
Widest category
General, 17.5 points apart on average over 17 shared benchmarks.
Widest single gap
LMArena Text: Japanese: Nova 2 Lite 1273 against GPT-5.1 1453, 30.0 points apart on a 0 to 100 scale.
Output price
Nova 2 Lite $2.50 against GPT-5.1 $10.00 per million output tokens, 4.0x apart.
Context window
Nova 2 Lite takes 1M tokens, GPT-5.1 400K.

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
CategoryNova 2 LiteBarsGPT-5.1Ties
Coding03
Intelligence01
Reasoning03
Math02
Knowledge04
General017
All shared boards030
CodingLike-for-likeSix of these boards feed the Vibe Coding Index03
Coding benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
SWE-bench VerifiedNot measured66.0%Only GPT-5.1 measured
LMArena WebDevNot measured1396Only GPT-5.1 measured
AA Coding Index23.049.4GPT-5.1
LiveCodeBench (Vals AI)Not measured86.5%Only GPT-5.1 measured
SWE-bench Verified (Vals AI)Not measured69.8%Only GPT-5.1 measured
Vibe Code Bench (Vals AI)Not measured24.6%Only GPT-5.1 measured
LiveCodeBench (Artificial Analysis run)Not measured86.8%Only GPT-5.1 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured45.5%Only GPT-5.1 measured
Terminal-BenchNot measured47.6%Only GPT-5.1 measured
GSO-BenchNot measured13.7%Only GPT-5.1 measured
WeirdMLNot measured60.8%Only GPT-5.1 measured
ALE-Bench236.3Not measuredOnly Nova 2 Lite measured
LMArena Text: coding13851453GPT-5.1
LMArena Text: software and IT13941454GPT-5.1
LMArena WebDev: ReactNot measured1307Only GPT-5.1 measured
LMArena WebDev: HTMLNot measured1405Only GPT-5.1 measured
LMArena WebDev: from an imageNot measured1421Only GPT-5.1 measured
Neither model has a result on the other 22 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
AA Intelligence Index13.424.7GPT-5.1
Epoch Capabilities IndexNot measured149.8Only GPT-5.1 measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
Agentic work benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
τ²-Bench TelecomNot measured81.9%Only GPT-5.1 measured
DeepResearch BenchNot measured42.8%Only GPT-5.1 measured
Vending-Bench 2Not measured$1,473Only GPT-5.1 measured
Neither model has a result on the other 38 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index03
Reasoning benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
GPQA DiamondNot measured86.6%Only GPT-5.1 measured
MMMU Pro (Vals AI)Not measured83.2%Only GPT-5.1 measured
GPQA Diamond (Artificial Analysis run)Not measured87.3%Only GPT-5.1 measured
Humanity's Last Exam (Artificial Analysis run)Not measured28.5%Only GPT-5.1 measured
GPQA Diamond (Epoch AI run)Not measured87.6%Only GPT-5.1 measured
ARC-AGINot measured72.8%Only GPT-5.1 measured
ARC-AGI-2Not measured17.6%Only GPT-5.1 measured
SimpleBenchNot measured53.2%Only GPT-5.1 measured
Chess puzzlesNot measured42.0%Only GPT-5.1 measured
Mystery game puzzlesNot measured19.0%Only GPT-5.1 measured
VPCTNot measured58.7%Only GPT-5.1 measured
LMArena Text: hard prompts13641457GPT-5.1
LMArena Text: expert13591470GPT-5.1
LMArena Text: hard prompts in English13851462GPT-5.1
LMArena Vision: diagramsNot measured1264Only GPT-5.1 measured
LMArena Vision: homeworkNot measured1272Only GPT-5.1 measured
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
AIMENot measured93.3%Only GPT-5.1 measured
MGSM (Vals AI)Not measured93.0%Only GPT-5.1 measured
AA Math IndexNot measured94.0Only GPT-5.1 measured
AIME 2025 (Artificial Analysis run)Not measured94.0%Only GPT-5.1 measured
OTIS Mock AIMENot measured88.6%Only GPT-5.1 measured
LMArena Text: math13591446GPT-5.1
LMArena Text: mathematical work13691449GPT-5.1
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
Knowledge benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
MMLU ProNot measured86.4%Only GPT-5.1 measured
LegalBench (Vals AI)Not measured85.7%Only GPT-5.1 measured
CaseLaw (Vals AI)Not measured73.4%Only GPT-5.1 measured
CorpFin (Vals AI)Not measured63.8%Only GPT-5.1 measured
TaxEval (Vals AI)Not measured74.9%Only GPT-5.1 measured
MortgageTax (Vals AI)Not measured61.4%Only GPT-5.1 measured
MedQA (Vals AI)Not measured96.4%Only GPT-5.1 measured
MedCode (Vals AI)Not measured52.7%Only GPT-5.1 measured
MMLU Pro (Artificial Analysis run)Not measured87.0%Only GPT-5.1 measured
SimpleQA VerifiedNot measured48.0%Only GPT-5.1 measured
LMArena Text: science13821459GPT-5.1
LMArena Text: medicine and healthcare13861456GPT-5.1
LMArena Text: legal and government13591459GPT-5.1
LMArena Text: business and finance13691431GPT-5.1
FACTS Benchmark SuiteNot measured45.0%Only GPT-5.1 measured
Neither model has a result on the other 3 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
Design Arena: websitesNot measured1187Only GPT-5.1 measured
Design Arena: UI componentsNot measured1166Only GPT-5.1 measured
Design Arena: game devNot measured1179Only GPT-5.1 measured
Design Arena: data vizNot measured1204Only GPT-5.1 measured
Design Arena: 3DNot measured1061Only GPT-5.1 measured
Design Arena: all code categoriesNot measured1171Only GPT-5.1 measured
Design Arena: SVGNot measured1149Only GPT-5.1 measured
Design Arena: ASCII artNot measured1119Only 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 index017
General benchmarks for Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
SAGE (Vals AI)Not measured43.2%Only GPT-5.1 measured
MedScribe (Vals AI)Not measured88.1%Only GPT-5.1 measured
IFBenchNot measured72.9%Only GPT-5.1 measured
Long context reasoning (AA-LCR)Not measured80.0%Only GPT-5.1 measured
DTBenchNot measured90.1%Only GPT-5.1 measured
LMCANot measured43.9%Only GPT-5.1 measured
CL-benchNot measured23.7%Only GPT-5.1 measured
CL-bench LifeNot measured17.3%Only GPT-5.1 measured
LMArena Text13621443GPT-5.1
LMArena Text: instruction following13351443GPT-5.1
LMArena Text: creative writing12921427GPT-5.1
LMArena VisionNot measured1250Only GPT-5.1 measured
LMArena Text: English13851451GPT-5.1
LMArena Text: non-English13371431GPT-5.1
LMArena Text: Chinese13641495GPT-5.1
LMArena Text: German13431438GPT-5.1
LMArena Text: Japanese12731453GPT-5.1
LMArena Text: Korean12811401GPT-5.1
LMArena Text: French13811450GPT-5.1
LMArena Text: Spanish13751433GPT-5.1
LMArena Text: Russian13421435GPT-5.1
LMArena Text: Polish13271440GPT-5.1
LMArena Text: multi-turn13381450GPT-5.1
LMArena Text: longer queries13351448GPT-5.1
LMArena Text: writing and language13181428GPT-5.1
LMArena Text: entertainment and media13091415GPT-5.1
LMArena Vision: EnglishNot measured1252Only GPT-5.1 measured
LMArena Vision: ChineseNot measured1270Only GPT-5.1 measured
LMArena Vision: reading textNot measured1255Only GPT-5.1 measured
LMArena Vision: humorNot measured1263Only GPT-5.1 measured
LMArena Vision: captioningNot measured1252Only GPT-5.1 measured
LMArena Vision: recognizing thingsNot measured1232Only GPT-5.1 measured
LMArena Vision: creative writingNot measured1266Only GPT-5.1 measured
LMArena DocumentNot measured1403Only 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 Nova 2 Lite and GPT-5.1
BenchmarkNova 2 LiteGPT-5.1Leader
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

Nova 2 Lite$0.0015Fits in one request
GPT-5.1$0.0063Fits in one request

Nova 2 Lite costs less

Repository review

50K input + 3K output tokens

Nova 2 Lite$0.022Fits in one request
GPT-5.1$0.092Fits in one request

Nova 2 Lite costs less

Agent loop

200K input + 10K output tokens

Nova 2 Lite$0.085Fits in one request
GPT-5.1$0.350Fits in one request

Nova 2 Lite 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 Nova 2 Lite and GPT-5.1
SpecificationAmazon Nova 2 LiteOpenAI GPT-5.1
MakerAmazonOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedDecember 2, 2025November 13, 2025
Context window1M400K
Input $/Mtok$0.30$1.25
Output $/Mtok$2.50$10.00
Coding indexNot benchmarked40.4
Independent measurements behind it03
Cost per solved taskNot computable$1.02
SourceOpenRouter listingOpenRouter listing

Questions

Is Nova 2 Lite better than GPT-5.1 for coding?

Only GPT-5.1 has a coding score, 40.4 on the Vibe Coding Index; Nova 2 Lite has none, so the two cannot be ranked on coding. Pick Nova 2 Lite for output tokens 4.0x cheaper ($2.50 vs $10.00 per million) and a larger context window (1M against 400K tokens).

Which is cheaper, Nova 2 Lite or GPT-5.1?

Nova 2 Lite costs $0.30 per million input tokens and $2.50 per million output tokens; GPT-5.1 costs $1.25 and $10.00. Cost per solved task is known for GPT-5.1 only.

Which has the bigger context window, Nova 2 Lite or GPT-5.1?

Nova 2 Lite, with 1M tokens against 400K.

How many benchmarks is the Nova 2 Lite vs GPT-5.1 comparison based on?

30 benchmarks have a result for both models as of October 21, 2026. Nova 2 Lite's coding index rests on 0 independent benchmarks and GPT-5.1's on 3. Where only one model has a result, the page says so instead of naming a winner.

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