Nova 2 Lite vs GPT-5.1-Codex-Max
Nova 2 Lite costs 4.0x less per output token than GPT-5.1-Codex-Max ($2.50 vs $10.00 per million). Updated October 21, 2026; 1 benchmarks have a result for both.
Nova 2 Lite or GPT-5.1-Codex-Max: which to pick
Neither model has a coding score yet, 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).
- Shared results
- 1
- Nova 2 Lite only
- 30
- GPT-5.1-Codex-Max only
- 5
- Like-for-like categories
- 1 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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Nova 2 Lite has a AA Intelligence Index result, 13.4.
Directional only
Long documents
Listed context window
Nova 2 Lite
Nova 2 Lite takes 1M tokens against 400K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Nova 2 Lite
Nova 2 Lite $0.0015, GPT-5.1-Codex-Max $0.0063 per turn.
List prices
At a glance
- Coding index
- Nova 2 Lite not benchmarked, GPT-5.1-Codex-Max not benchmarked.
- Widest category
- Coding, 33.1 points apart on average over 1 shared benchmark.
- Widest single gap
- ALE-Bench: Nova 2 Lite 236.3 against GPT-5.1-Codex-Max 1228.3, 33.1 points apart on a 0 to 100 scale.
- Output price
- Nova 2 Lite $2.50 against GPT-5.1-Codex-Max $10.00 per million output tokens, 4.0x apart.
- Context window
- Nova 2 Lite takes 1M tokens, GPT-5.1-Codex-Max 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.
| Category | Nova 2 Lite | Bars | GPT-5.1-Codex-Max | Ties |
|---|---|---|---|---|
| Coding | 0 | 1 | ||
| All shared boards | 0 | 1 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index01
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| AA Coding Index | 23.0 | Not measured | Only Nova 2 Lite measured |
| LiveCodeBench (Vals AI) | Not measured | 83.6% | Only GPT-5.1-Codex-Max measured |
| Vibe Code Bench (Vals AI) | Not measured | 22.2% | Only GPT-5.1-Codex-Max measured |
| Terminal-Bench | Not measured | 60.4% | Only GPT-5.1-Codex-Max measured |
| ALE-Bench | 236.3 | 1228.3 | GPT-5.1-Codex-Max |
| LMArena Text: coding | 1385 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: software and IT | 1394 | Not measured | Only Nova 2 Lite measured |
| Neither model has a result on the other 32 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| AA Intelligence Index | 13.4 | Not measured | Only Nova 2 Lite 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
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| METR time horizons | Not measured | 70.8% | Only GPT-5.1-Codex-Max measured |
| Neither model has a result on the other 40 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| LMArena Text: hard prompts | 1364 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: expert | 1359 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: hard prompts in English | 1385 | Not measured | Only Nova 2 Lite measured |
| Neither model has a result on the other 19 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| ProofBench | Not measured | 9.0% | Only GPT-5.1-Codex-Max measured |
| LMArena Text: math | 1359 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: mathematical work | 1369 | Not measured | Only Nova 2 Lite measured |
| Neither model has a result on the other 10 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index4 boards, none shared
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| LMArena Text: science | 1382 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: medicine and healthcare | 1386 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: legal and government | 1359 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: business and finance | 1369 | Not measured | Only Nova 2 Lite measured |
| Neither model has a result on the other 14 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index17 boards, none shared
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| LMArena Text | 1362 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: instruction following | 1335 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: creative writing | 1292 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: English | 1385 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: non-English | 1337 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: Chinese | 1364 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: German | 1343 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: Japanese | 1273 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: Korean | 1281 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: French | 1381 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: Spanish | 1375 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: Russian | 1342 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: Polish | 1327 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: multi-turn | 1338 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: longer queries | 1335 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: writing and language | 1318 | Not measured | Only Nova 2 Lite measured |
| LMArena Text: entertainment and media | 1309 | Not measured | Only Nova 2 Lite measured |
| Neither model has a result on the other 29 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Nova 2 Lite | GPT-5.1-Codex-Max | Leader |
|---|---|---|---|
| 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 costs less
Repository review
50K input + 3K output tokens
Nova 2 Lite costs less
Agent loop
200K input + 10K output tokens
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.
| Specification | Amazon Nova 2 Lite | OpenAI GPT-5.1-Codex-Max |
|---|---|---|
| Maker | Amazon | OpenAI |
| Weights | No public weights listed | No public weights listed |
| Released | December 2, 2025 | December 4, 2025 |
| Context window | 1M | 400K |
| Input $/Mtok | $0.30 | $1.25 |
| Output $/Mtok | $2.50 | $10.00 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 1 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Nova 2 Lite better than GPT-5.1-Codex-Max for coding?
Neither model has a coding score yet, 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-Codex-Max?
Nova 2 Lite costs $0.30 per million input tokens and $2.50 per million output tokens; GPT-5.1-Codex-Max costs $1.25 and $10.00. Cost per solved task is known for neither of them.
Which has the bigger context window, Nova 2 Lite or GPT-5.1-Codex-Max?
Nova 2 Lite, with 1M tokens against 400K.
How many benchmarks is the Nova 2 Lite vs GPT-5.1-Codex-Max comparison based on?
1 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-Codex-Max's on 1. Where only one model has a result, the page says so instead of naming a winner.