MiniMax M3.1 Flash vs Hy4
Hy4 leads MiniMax M3.1 Flash on coding, 65.2 to 58.9 on the Vibe Coding Index, and MiniMax M3.1 Flash costs 2.1x less per output token ($0.60 vs $1.2505 per million). Updated November 5, 2026; 6 benchmarks have a result for both.
MiniMax M3.1 Flash or Hy4: which to pick
Pick Hy4 for coding: it scores 65.2 on the Vibe Coding Index against 58.9 for MiniMax M3.1 Flash, though on 2 benchmarks against 4.
Pick MiniMax M3.1 Flash for output tokens 2.1x cheaper ($0.60 vs $1.2505 per million).
- Shared results
- 6
- MiniMax M3.1 Flash only
- 20
- Hy4 only
- 0
- Like-for-like categories
- 3 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
Hy4
Hy4 scores 65.2 against 58.9.
4 and 2 benchmarks behind the scores
Intelligence
AA Intelligence Index
No call
Only MiniMax M3.1 Flash has a AA Intelligence Index result, 29.1.
Directional only
General
Vals Index
Hy4
Hy4 leads, 59.4% against 53.8%.
Same board, both measured
Long documents
Listed context window
No call
Both take 1.05M tokens.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
MiniMax M3.1 Flash
MiniMax M3.1 Flash $0.0004, Hy4 $0.0010 per turn.
List prices
At a glance
- Coding index
- MiniMax M3.1 Flash 58.9 from 4 benchmarks, Hy4 65.2 from 2 benchmarks.
- Widest category
- Coding, 13.0 points apart on average over 2 shared benchmarks.
- Widest single gap
- Terminal-Bench 4 (Vals AI): MiniMax M3.1 Flash 25.3% against Hy4 39.4%, 18.9 points apart on a 0 to 100 scale.
- Output price
- MiniMax M3.1 Flash $0.60 against Hy4 $1.2505 per million output tokens, 2.1x 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.
| Category | MiniMax M3.1 Flash | Bars | Hy4 | Ties |
|---|---|---|---|---|
| Coding | 0 | 2 | ||
| Agentic work | 0 | 3 | ||
| General | 0 | 1 | ||
| All shared boards | 0 | 6 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index02
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| LiveBench coding | 83.9% | Not measured | Only MiniMax M3.1 Flash measured |
| LMArena WebDev | 1582 | Not measured | Only MiniMax M3.1 Flash measured |
| Terminal-Bench 4 (Vals AI) | 25.3% | 39.4% | Hy4 |
| Vibe Code Bench (Vals AI) | 73.9% | 81.0% | Hy4 |
| SciCode | 53.4% | Not measured | Only MiniMax M3.1 Flash measured |
| ALE-Bench | 217.8 | Not measured | Only MiniMax M3.1 Flash measured |
| LMArena WebDev: React | 1607 | Not measured | Only MiniMax M3.1 Flash measured |
| LMArena WebDev: HTML | 1539 | Not measured | Only MiniMax M3.1 Flash measured |
| SWE-Bench Pro V2 | 96.6% | Not measured | Only MiniMax M3.1 Flash measured |
| GameBench 2 | 40.8 | Not measured | Only MiniMax M3.1 Flash measured |
| Neither model has a result on the other 40 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| AA Intelligence Index | 29.1 | Not measured | Only MiniMax M3.1 Flash measured |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index03
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| LiveBench research | 72.7% | Not measured | Only MiniMax M3.1 Flash measured |
| LiveBench browser | 80.6% | Not measured | Only MiniMax M3.1 Flash measured |
| LiveBench long agentic | 28.8% | Not measured | Only MiniMax M3.1 Flash measured |
| Tax Agent Bench (Vals AI) | 32.1% | 34.4% | Hy4 |
| Legal Research Bench (Vals AI) | 34.1% | 41.4% | Hy4 |
| Harvey's Legal Agent Benchmark (Vals AI) | 7.5% | 12.5% | Hy4 |
| Neither model has a result on the other 38 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| LiveBench reasoning | 82.9% | Not measured | Only MiniMax M3.1 Flash measured |
| Humanity's Last Exam (Artificial Analysis run) | 48.0% | Not measured | Only MiniMax M3.1 Flash measured |
| Neither model has a result on the other 22 boards here | |||
MathNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| Neither model has a result on 14 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| PRBench Finance | 45.6% | Not measured | Only MiniMax M3.1 Flash measured |
| PRBench Legal | 45.1% | Not measured | Only MiniMax M3.1 Flash measured |
| Neither model has a result on the other 18 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| LiveBench design | 74.0% | Not measured | Only MiniMax M3.1 Flash measured |
| Neither model has a result on the other 8 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | MiniMax M3.1 Flash | Hy4 | Leader |
|---|---|---|---|
| Vals Index | 53.8% | 59.4% | Hy4 |
| LiveBench data analysis | 71.4% | Not measured | Only MiniMax M3.1 Flash measured |
| SAGE (Vals AI) | 85.3% | Not measured | Only MiniMax M3.1 Flash measured |
| Long context reasoning (AA-LCR) | 79.7% | Not measured | Only MiniMax M3.1 Flash measured |
| Neither model has a result on the other 44 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | MiniMax M3.1 Flash | Hy4 | 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
MiniMax M3.1 Flash costs less
Repository review
50K input + 3K output tokens
MiniMax M3.1 Flash costs less
Agent loop
200K input + 10K output tokens
MiniMax M3.1 Flash 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 | MiniMax M3.1 Flash | Tencent Hy4 |
|---|---|---|
| Maker | MiniMax | Tencent |
| Weights | Open weights | Open weights |
| Released | October 19, 2026 | November 4, 2026 |
| Context window | 1.05M | 1.05M |
| Input $/Mtok | $0.15 | $0.417 |
| Output $/Mtok | $0.60 | $1.2505 |
| Coding index | 58.9 | 65.2 |
| Independent measurements behind it | 4 | 2 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is MiniMax M3.1 Flash better than Hy4 for coding?
Pick Hy4 for coding: it scores 65.2 on the Vibe Coding Index against 58.9 for MiniMax M3.1 Flash, though on 2 benchmarks against 4. Pick MiniMax M3.1 Flash for output tokens 2.1x cheaper ($0.60 vs $1.2505 per million).
Which is cheaper, MiniMax M3.1 Flash or Hy4?
MiniMax M3.1 Flash costs $0.15 per million input tokens and $0.60 per million output tokens; Hy4 costs $0.417 and $1.2505. Cost per solved task is known for neither of them.
Which has the bigger context window, MiniMax M3.1 Flash or Hy4?
Neither: both take 1.05M tokens.
How many benchmarks is the MiniMax M3.1 Flash vs Hy4 comparison based on?
6 benchmarks have a result for both models as of November 5, 2026. MiniMax M3.1 Flash's coding index rests on 4 independent benchmarks and Hy4's on 2. Where only one model has a result, the page says so instead of naming a winner.