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MiniMax M3.1 Flash vs Solar Pro 4

MiniMax M3.1 Flash leads the LLM Stats Score 48.5 to 35.0. MiniMax M3.1 Flash is 2.0x cheaper per token.

MiniMax · Upstage · Updated for 2026

Which is better?

MiniMax M3.1 Flash leads the overall LLM Stats Score 48.5 to 35.0, ranking #29 overall.

On price, MiniMax M3.1 Flash is roughly 2.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

MiniMax M3.1 Flash also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose MiniMax M3.1 Flash

  • overall performance matters — it scores 48.5 and ranks #29 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • cost matters — it's about 2.0x cheaper per token
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Oct 2026

Choose Solar Pro 4

  • you want predictable pricing at $0.30/M input and $1.20/M output

At a glance

The differences that matter most.

MiniMax M3.1 Flash
MiniMax
Solar Pro 4
Upstage
Core performance indexes
LLM Stats Score
48.5
#29
35.0
#107
Reasoning
45.8
#34
34.7
#102
Coding
37.8
#23
20.6
#112
Agents
35.6
#23
12.0
#128
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.15 / M
$0.30 / M
Output price
$0.60 / M
$1.20 / M
Context window
1,000,000
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
MiniMax M3.1 Flash
Solar Pro 4
Tool use
26.8#30
9.6#149
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

14 reported for MiniMax M3.1 Flash · 9 for Solar Pro 4

No common benchmarks found

MiniMax M3.1 Flash and Solar Pro 4don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

MiniMax M3.1 Flash costs less

For input processing, MiniMax M3.1 Flash ($0.15/1M tokens) is 2.0x cheaper than Solar Pro 4 ($0.30/1M tokens).

For output processing, MiniMax M3.1 Flash ($0.60/1M tokens) is 2.0x cheaper than Solar Pro 4 ($1.20/1M tokens).

In conclusion, Solar Pro 4 is more expensive than MiniMax M3.1 Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Oct 19 2026 • llm-stats.com
MiniMax
MiniMax M3.1 Flash
Input tokens$0.15
Output tokens$0.60
Best providerMiniMax
Upstage
Solar Pro 4
Input tokens$0.30
Output tokens$1.20
Best providerUnknown Organization
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

MiniMax M3.1 Flash accepts 1,000,000 input tokens compared to Solar Pro 4's 524,288 tokens. MiniMax M3.1 Flash can generate longer responses up to 524,288 tokens, while Solar Pro 4 is limited to 131,072 tokens.

MiniMax
MiniMax M3.1 Flash
Input1,000,000 tokens
Output524,288 tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Mon Oct 19 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

MiniMax M3.1 Flash supports multimodal inputs, whereas Solar Pro 4 does not.

MiniMax M3.1 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

MiniMax M3.1 Flash

Text
Images
Audio
Video

Solar Pro 4

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

MiniMax M3.1 Flash

Proprietary

Closed source

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

MiniMax M3.1 Flash was released on 2026-10-19, while Solar Pro 4 was released on 2026-08-06.

MiniMax M3.1 Flash is 2 months newer than Solar Pro 4.

MiniMax M3.1 Flash

Oct 19, 2026

-2 days ago

2mo newer
Solar Pro 4

Aug 6, 2026

2 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

MiniMax M3.1 Flash is available from MiniMax. Solar Pro 4 is available from Upstage.

MiniMax M3.1 Flash

minimax logo
MiniMax
Input Price:Input: $0.15/1MOutput Price:Output: $0.60/1M

Solar Pro 4

upstage logo
Unknown Organization
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against MiniMax M3.1 Flash and Solar Pro 4 side-by-side, then vote on the output you prefer.

MiniMax M3.1 Flash
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about MiniMax M3.1 Flash vs Solar Pro 4.

Which is better, MiniMax M3.1 Flash or Solar Pro 4?

MiniMax M3.1 Flash leads the LLM Stats Score 48.5 to 35.0. MiniMax M3.1 Flash is made by MiniMax and Solar Pro 4 is made by Upstage. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does MiniMax M3.1 Flash compare to Solar Pro 4 in benchmarks?

MiniMax M3.1 Flash scores BabyVision: 91.0%, CharXiv-R: 82.5%, CyberGym: 82.2%, BankerToolBench: 76.2%, DeepSWE 1.1: 73.7%. Solar Pro 4 scores AIME 2026: 95.3%, GPQA: 89.0%, LiveCodeBench: 87.8%, MMLU-Pro: 86.3%, AA-LCR: 71.0%.

Is MiniMax M3.1 Flash cheaper than Solar Pro 4?

MiniMax M3.1 Flash is 2.0x cheaper for input tokens. MiniMax M3.1 Flash costs $0.15/M input and $0.60/M output via minimax. Solar Pro 4 costs $0.30/M input and $1.20/M output via upstage.

What are the context window sizes for MiniMax M3.1 Flash and Solar Pro 4?

MiniMax M3.1 Flash supports 1.0M tokens and Solar Pro 4 supports 524K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between MiniMax M3.1 Flash and Solar Pro 4?

Key differences include LLM Stats Score (48.5 vs 35.0), context window (1.0M vs 524K), input pricing ($0.15 vs $0.30/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes MiniMax M3.1 Flash and Solar Pro 4?

MiniMax M3.1 Flash is developed by MiniMax and Solar Pro 4 is developed by Upstage.

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