Claude Haiku 5.5 vs MiniMax M3.1 Flash
Claude Haiku 5.5 leads MiniMax M3.1 Flash on coding, 70.7 to 59.1 on the Vibe Coding Index, and Claude Haiku 5.5 costs 1.2x less per output token ($0.50 vs $0.60 per million). Updated October 23, 2026; 20 benchmarks have a result for both.
Claude Haiku 5.5 or MiniMax M3.1 Flash: which to pick
Pick Claude Haiku 5.5 for coding: it scores 70.7 on the Vibe Coding Index against 59.1 for MiniMax M3.1 Flash.
Pick MiniMax M3.1 Flash for a larger context window (1.05M against 1M tokens) and work measured by LMArena WebDev or LMArena WebDev: React, where it leads.
- Shared results
- 20
- Claude Haiku 5.5 only
- 69
- MiniMax M3.1 Flash only
- 0
- 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.
Coding
Vibe Coding Index, six public coding benchmarks
Claude Haiku 5.5
Claude Haiku 5.5 scores 70.7 against 59.1.
5 and 4 benchmarks behind the scores
Intelligence
AA Intelligence Index
Claude Haiku 5.5
Claude Haiku 5.5 leads, 43.4 against 42.7.
Same board, both measured
Web design
Design Arena: websites
No call
Only Claude Haiku 5.5 has a Design Arena: websites result, 1262.
Directional only
General
Vals Index
Claude Haiku 5.5
Claude Haiku 5.5 leads, 58.7% against 53.8%.
Same board, both measured
Long documents
Listed context window
MiniMax M3.1 Flash
MiniMax M3.1 Flash takes 1.05M tokens against 1M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Claude Haiku 5.5
Claude Haiku 5.5 $0.0003, MiniMax M3.1 Flash $0.0004 per turn.
List prices
At a glance
- Coding index
- Claude Haiku 5.5 70.7 from 5 benchmarks, MiniMax M3.1 Flash 59.1 from 4 benchmarks.
- Widest category
- Agentic work, 9.5 points apart on average over 6 shared benchmarks.
- Widest single gap
- LiveBench long agentic: Claude Haiku 5.5 57.6% against MiniMax M3.1 Flash 34.7%, 22.9 points apart on a 0 to 100 scale.
- Output price
- Claude Haiku 5.5 $0.50 against MiniMax M3.1 Flash $0.60 per million output tokens, 1.2x apart.
- Context window
- Claude Haiku 5.5 takes 1M tokens, MiniMax M3.1 Flash 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.
| Category | Claude Haiku 5.5 | Bars | MiniMax M3.1 Flash | Ties |
|---|---|---|---|---|
| Coding | 5 | 2 | ||
| Intelligence | 1 | 0 | ||
| Agentic work | 3 | 3 | ||
| Reasoning | 0 | 2 | ||
| Web design | 1 | 0 | ||
| General | 2 | 1 | ||
| All shared boards | 12 | 8 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index52
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| LiveBench coding | 91.4% | 83.9% | Claude Haiku 5.5 |
| LMArena WebDev | 1585 | 1590 | MiniMax M3.1 Flash |
| Terminal-Bench 4 (Vals AI) | 36.4% | 25.3% | Claude Haiku 5.5 |
| Vibe Code Bench (Vals AI) | 90.4% | 73.9% | Claude Haiku 5.5 |
| Code migration (Vals AI) | 44.6% | Not measured | Only Claude Haiku 5.5 measured |
| ProgramBench (Vals AI) | 2.5% | Not measured | Only Claude Haiku 5.5 measured |
| IOI (Vals AI) | 47.3% | Not measured | Only Claude Haiku 5.5 measured |
| SWE-bench Multimodal (Vals AI) | 44.0% | Not measured | Only Claude Haiku 5.5 measured |
| Vibe Code Bench 1-100 (Vals AI) | 20.4% | Not measured | Only Claude Haiku 5.5 measured |
| CyberBench (Vals AI) | 75.5% | Not measured | Only Claude Haiku 5.5 measured |
| SciCode | 55.0% | 53.4% | Claude Haiku 5.5 |
| FrontierCode | 46.4% | Not measured | Only Claude Haiku 5.5 measured |
| FrontierSWE | 43.8% | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: coding | 1450 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: software and IT | 1446 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena WebDev: React | 1606 | 1614 | MiniMax M3.1 Flash |
| LMArena WebDev: HTML | 1565 | 1532 | Claude Haiku 5.5 |
| SciCode | 9.2% | Not measured | Only Claude Haiku 5.5 measured |
| SWE-Bench Pro V2 | 87.2% | Not measured | Only Claude Haiku 5.5 measured |
| Neither model has a result on the other 24 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| AA Intelligence Index | 43.4 | 42.7 | Claude Haiku 5.5 |
| Epoch Capabilities Index | 159.3 | Not measured | Only Claude Haiku 5.5 measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index33
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| LiveBench research | 81.9% | 72.7% | Claude Haiku 5.5 |
| LiveBench browser | 80.0% | 92.0% | MiniMax M3.1 Flash |
| LiveBench long agentic | 57.6% | 34.7% | Claude Haiku 5.5 |
| SREBench (Vals AI) | 5.7% | Not measured | Only Claude Haiku 5.5 measured |
| Finance Agent (Vals AI) | 54.1% | Not measured | Only Claude Haiku 5.5 measured |
| Tax Agent Bench (Vals AI) | 31.9% | 32.1% | MiniMax M3.1 Flash |
| Legal Research Bench (Vals AI) | 43.3% | 34.1% | Claude Haiku 5.5 |
| Harvey's Legal Agent Benchmark (Vals AI) | 4.2% | 7.5% | MiniMax M3.1 Flash |
| Excel Modeling Benchmark (Vals AI) | 59.0% | Not measured | Only Claude Haiku 5.5 measured |
| BioMysteryBench (Vals AI) | 70.4% | Not measured | Only Claude Haiku 5.5 measured |
| Terminal-Bench-Science (Vals AI) | 10.0% | Not measured | Only Claude Haiku 5.5 measured |
| Vals Science Index | 38.5% | Not measured | Only Claude Haiku 5.5 measured |
| APEX-Agents | 56.1% | Not measured | Only Claude Haiku 5.5 measured |
| Vending-Bench 2 | $3,602 | Not measured | Only Claude Haiku 5.5 measured |
| Neither model has a result on the other 28 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| LiveBench reasoning | 82.4% | 82.9% | MiniMax M3.1 Flash |
| MysteryMechanism (Vals AI) | 35.1% | Not measured | Only Claude Haiku 5.5 measured |
| Humanity's Last Exam (Artificial Analysis run) | 44.4% | 48.0% | MiniMax M3.1 Flash |
| GPQA Diamond (Epoch AI run) | 89.6% | Not measured | Only Claude Haiku 5.5 measured |
| ARC-AGI | 89.0% | Not measured | Only Claude Haiku 5.5 measured |
| ARC-AGI-2 | 61.3% | Not measured | Only Claude Haiku 5.5 measured |
| Chess puzzles | 55.0% | Not measured | Only Claude Haiku 5.5 measured |
| Mystery game puzzles | 30.0% | Not measured | Only Claude Haiku 5.5 measured |
| EBR-bench | 43.8% | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: hard prompts | 1421 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: expert | 1448 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: hard prompts in English | 1429 | Not measured | Only Claude Haiku 5.5 measured |
| Neither model has a result on the other 11 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| OTIS Mock AIME | 98.9% | Not measured | Only Claude Haiku 5.5 measured |
| FrontierMath, tiers 1 to 3 | 75.1% | Not measured | Only Claude Haiku 5.5 measured |
| FrontierMath, tier 4 | 46.3% | Not measured | Only Claude Haiku 5.5 measured |
| ProofBench | 89.0% | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: math | 1413 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: mathematical work | 1431 | Not measured | Only Claude Haiku 5.5 measured |
| Neither model has a result on the other 8 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| MedCode (Vals AI) | 51.5% | Not measured | Only Claude Haiku 5.5 measured |
| SimpleQA Verified | 23.8% | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: science | 1408 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: medicine and healthcare | 1372 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: legal and government | 1395 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: business and finance | 1406 | Not measured | Only Claude Haiku 5.5 measured |
| Neither model has a result on the other 14 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| Design Arena: websites | 1262 | Not measured | Only Claude Haiku 5.5 measured |
| Design Arena: UI components | 1282 | Not measured | Only Claude Haiku 5.5 measured |
| Design Arena: game dev | 1315 | Not measured | Only Claude Haiku 5.5 measured |
| Design Arena: data viz | 1293 | Not measured | Only Claude Haiku 5.5 measured |
| Design Arena: 3D | 1342 | Not measured | Only Claude Haiku 5.5 measured |
| Design Arena: all code categories | 1277 | Not measured | Only Claude Haiku 5.5 measured |
| LiveBench design | 83.1% | 74.0% | Claude Haiku 5.5 |
| Neither model has a result on the other 2 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index21
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | Leader |
|---|---|---|---|
| Vals Index | 58.7% | 53.8% | Claude Haiku 5.5 |
| LiveBench data analysis | 53.1% | 71.4% | MiniMax M3.1 Flash |
| Public Benefits Bench (Vals AI) | 63.2% | Not measured | Only Claude Haiku 5.5 measured |
| SAGE (Vals AI) | 45.8% | Not measured | Only Claude Haiku 5.5 measured |
| MedScribe (Vals AI) | 89.5% | Not measured | Only Claude Haiku 5.5 measured |
| Long context reasoning (AA-LCR) | 82.7% | 79.7% | Claude Haiku 5.5 |
| DTBench | 95.0% | Not measured | Only Claude Haiku 5.5 measured |
| LMCA | 51.1% | Not measured | Only Claude Haiku 5.5 measured |
| Furniture assembly | 47.5% | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text | 1401 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: instruction following | 1416 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: creative writing | 1336 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: English | 1409 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: non-English | 1386 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: Chinese | 1431 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: French | 1441 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: Spanish | 1385 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: Russian | 1373 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: multi-turn | 1396 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: longer queries | 1399 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: writing and language | 1370 | Not measured | Only Claude Haiku 5.5 measured |
| LMArena Text: entertainment and media | 1352 | Not measured | Only Claude Haiku 5.5 measured |
| MultiChallenge | 67.7% | Not measured | Only Claude Haiku 5.5 measured |
| Neither model has a result on the other 25 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Claude Haiku 5.5 | MiniMax M3.1 Flash | 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
Claude Haiku 5.5 costs less
Repository review
50K input + 3K output tokens
Claude Haiku 5.5 costs less
Agent loop
200K input + 10K output tokens
Claude Haiku 5.5 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 | Anthropic Claude Haiku 5.5 | MiniMax M3.1 Flash |
|---|---|---|
| Maker | Anthropic | MiniMax |
| Weights | No public weights listed | Open weights |
| Released | October 7, 2026 | October 19, 2026 |
| Context window | 1M | 1.05M |
| Input $/Mtok | $0.10 | $0.15 |
| Output $/Mtok | $0.50 | $0.60 |
| Coding index | 70.7 | 59.1 |
| Independent measurements behind it | 5 | 4 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Claude Haiku 5.5 better than MiniMax M3.1 Flash for coding?
Pick Claude Haiku 5.5 for coding: it scores 70.7 on the Vibe Coding Index against 59.1 for MiniMax M3.1 Flash. Pick MiniMax M3.1 Flash for a larger context window (1.05M against 1M tokens) and work measured by LMArena WebDev or LMArena WebDev: React, where it leads.
Which is cheaper, Claude Haiku 5.5 or MiniMax M3.1 Flash?
Claude Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens; MiniMax M3.1 Flash costs $0.15 and $0.60. Cost per solved task is known for neither of them.
Which has the bigger context window, Claude Haiku 5.5 or MiniMax M3.1 Flash?
MiniMax M3.1 Flash, with 1.05M tokens against 1M.
How many benchmarks is the Claude Haiku 5.5 vs MiniMax M3.1 Flash comparison based on?
20 benchmarks have a result for both models as of October 23, 2026. Claude Haiku 5.5's coding index rests on 5 independent benchmarks and MiniMax M3.1 Flash's on 4. Where only one model has a result, the page says so instead of naming a winner.