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GPT-5.5 vs MiniMax M3.1 Flash

Updated October 19, 2026. Rank says GPT-5.5 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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Decision reading

GPT-5.5 has the higher public point estimate, 69.28 versus 67.05. Their conditional score ranges overlap. These ranges do not establish rank confidence. 4 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
OpenAI logo

OpenAI

69.28/100

Supported · Public rank #21

90% interval 63.0–75.5

Model B
MiniMax logo

MiniMax

67.05/100

Estimated · Public rank #28

Conditional range 52.7–81.4

Shared results
4
GPT-5.5 only
38
MiniMax M3.1 Flash only
8
Like-for-like categories
2 / 8
Supported: GPT-5.5 · Estimated: MiniMax M3.1 Flash. Conditional ranges do not establish rank confidence.How the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Coding work

    Code generation, repair, and software-engineering tasks

    GPT-5.5

    GPT-5.5 has the higher public coding point estimate, 62.1 to 61.3, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Chat turn cost

    1K fresh input + 500 output tokens

    MiniMax M3.1 Flash

    MiniMax M3.1 Flash has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    MiniMax M3.1 Flash

    MiniMax M3.1 Flash has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
Show secondary and unsupported calls
  • Repository review cost

    50K fresh input + 3K output tokens

    MiniMax M3.1 Flash

    MiniMax M3.1 Flash has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    MiniMax M3.1 Flash is scored on Estimated evidence for agentic, so the reading is directional rather than like-for-like.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    No clear pick

    The documented context windows are equal.

    Confidence: documented

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

62.1GPT-5.561.3MiniMax M3.1 Flash

Like-for-like · BenchAlign v5.8

GPT-5.5 has the higher coding point estimate. Conditional score ranges do not establish rank confidence.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

2 categories rest on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Coding

Like-for-like
GPT-5.5
62.1
Supported · #14/151
MiniMax M3.1 Flash
61.3
Supported · #17/151
Basis
BenchAlign v5.8 lane · 10 vs 3 public rows
Reading
GPT-5.5 leads · intervals overlap

Knowledge

Like-for-like
GPT-5.5
72.1
Supported · #15/186
MiniMax M3.1 Flash
73.2
Supported · #14/186
Basis
BenchAlign v5.8 lane · 6 vs 1 public rows
Reading
MiniMax M3.1 Flash leads · intervals overlap

Agentic

Directional only
GPT-5.5
62.7
Supported · #24/130
MiniMax M3.1 Flash
63.9
Estimated · #19/130
Basis
BenchAlign v5.8 lane · 15 vs 6 public rows
Reading
Directional only

Multimodal

Directional only
GPT-5.5
75.5
#23/55
MiniMax M3.1 Flash
73.5
#30/55
Basis
Provisional lane · 2 vs 1 weighted rows
Reading
Directional only

Reasoning

Not comparable
GPT-5.5
70.4
#18/26
MiniMax M3.1 Flash
80.6
Unranked · 2 rankable rows
Basis
Provisional lane · 2 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
GPT-5.5
Not ranked
MiniMax M3.1 Flash
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
GPT-5.5
93.3
#8/148
MiniMax M3.1 Flash
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
GPT-5.5
91.2
Unranked · 3 rankable rows
MiniMax M3.1 Flash
Not ranked
Basis
Provisional lane · 2 vs 0 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Supported evidence per lane · bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

GPT-5.5
$0.02
Fits in one request
MiniMax M3.1 Flash
$0.00045
Fits in one request

MiniMax M3.1 Flash has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

GPT-5.5
$0.34
Fits in one request
MiniMax M3.1 Flash
$0.0093
Fits in one request

MiniMax M3.1 Flash has the lower modeled cost

Costs use the listed standard API rates.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

GPT-5.5
$0.5
Fits in one request
MiniMax M3.1 Flash
$0.012
Fits in one request

MiniMax M3.1 Flash has the lower modeled cost

Costs use the listed standard API rates.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

GPT-5.5

$0.5 per 1M cached input tokens

OpenAI pricing

MiniMax M3.1 Flash

$0.015 per 1M cached input tokens

MiniMax: M3.1 Flash launch post

Documented inputs

GPT-5.5

Not sourced

MiniMax M3.1 Flash

Not sourced

Documented outputs

GPT-5.5

Not sourced

MiniMax M3.1 Flash

Not sourced

Provider availability

GPT-5.5

Not sourced

MiniMax M3.1 Flash

Not sourced

Reasoning profile

GPT-5.5

Reasoning

MiniMax M3.1 Flash

Reasoning

Weight access

GPT-5.5

Proprietary

MiniMax M3.1 Flash

Proprietary

License

GPT-5.5

Proprietary

MiniMax M3.1 Flash

Proprietary

Release date

GPT-5.5

2026-04-23

MiniMax M3.1 Flash

2026-10-19

If you already use one of these models

Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
GPT-5.5 has the higher public point estimate, 69.28 versus 67.05. Their conditional score ranges overlap. These ranges do not establish rank confidence.
Workload cost
Repository review: $0.34 vs $0.0093. Cache-heavy agent loop: $0.5 vs $0.012.
Context tradeoff
Both models list 1M.
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, GPT-5.5 or MiniMax M3.1 Flash?

GPT-5.5 has the higher public point estimate, 69.28 versus 67.05. Their conditional score ranges overlap. These ranges do not establish rank confidence. The page therefore keeps the decision tied to the specific documented workload.

Which is better for coding, GPT-5.5 or MiniMax M3.1 Flash?

GPT-5.5 has the higher public coding point estimate, 62.1 to 61.3, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which is better for agentic tasks, GPT-5.5 or MiniMax M3.1 Flash?

MiniMax M3.1 Flash scores higher for agentic tasks on the public lane, 63.9 to 62.7. MiniMax M3.1 Flash is scored on Estimated evidence for agentic tasks, so the reading is directional rather than like-for-like. BenchLM does not name a winner for agentic tasks from a directional reading; read the shared benchmark rows directly and test the models on the same task set.

Which costs less, GPT-5.5 or MiniMax M3.1 Flash?

For the stated presets, chat costs $0.02 on GPT-5.5 and $0.00045 on MiniMax M3.1 Flash; repository review costs $0.34 and $0.0093; the cache-heavy agent loop costs $0.5 and $0.012. Costs use the listed standard API rates.

Which has the larger context window, GPT-5.5 or MiniMax M3.1 Flash?

Both models list the same context window, 1M.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence50 rows

Agentic

  • Terminal-Bench 2.0

    GPT-5.582%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • CyberGym

    GPT-5.581.8%
    Source
    MiniMax M3.1 Flash82.2%
    Source

    MiniMax M3.1 Flash leads this result

  • BrowseComp

    GPT-5.584.4%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • OSWorld-Verified

    GPT-5.578.7%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • MCP Atlas

    GPT-5.575.3%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • Toolathlon

    GPT-5.555.6%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • τ²-bench results

    GPT-5.598%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • Gert Labs

    GPT-5.572.93%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • ResearchClawBench

    GPT-5.517.0%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • OSWorld 2.0

    GPT-5.513.0%
    Source
    MiniMax M3.1 Flash61.7%
    Source

    MiniMax M3.1 Flash leads this result

  • JobBench

    GPT-5.542.7%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • ExploitGym

    GPT-5.513.4%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    GPT-5.576.4%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • ApprenticeBench

    GPT-5.520%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • MazeBench

    GPT-5.50%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • AutomationBench

    GPT-5.5—
    MiniMax M3.1 Flash62.2%
    Source

    Not directly comparable

  • BankerToolBench

    GPT-5.5—
    MiniMax M3.1 Flash76.2%
    Source

    Not directly comparable

  • Terminal-Bench 4.0

    GPT-5.5—
    MiniMax M3.1 Flash38.10%
    Source

    Not directly comparable

  • Agents' Last Exam

    GPT-5.5—
    MiniMax M3.1 Flash29.6%
    Source

    Not directly comparable

Coding

  • SWE-bench Pro

    GPT-5.558.6%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • Terminal-Bench 2.0

    GPT-5.582.0%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • Vibe Code Bench

    GPT-5.569.85%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • React Native Evals

    GPT-5.584.7%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • cursorBench31

    GPT-5.559.2%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • CursorBench 3.2

    GPT-5.558.4%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • FrontierCode 1.1 Main

    GPT-5.543.0%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • LiveCodeBench (Vals)

    GPT-5.585.3%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • SWE-bench (Vals)

    GPT-5.582.6%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • PostTrainBench v1.1

    GPT-5.527.2%
    Source
    MiniMax M3.1 Flash39.3%
    Source

    MiniMax M3.1 Flash leads this result

  • DeepSWE

    GPT-5.5—
    MiniMax M3.1 Flash73.7%
    Source

    Not directly comparable

  • NL2Repo

    GPT-5.5—
    MiniMax M3.1 Flash61.2%
    Source

    Not directly comparable

Reasoning

  • MRCR v2 64K-128K

    GPT-5.583.1%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • MRCR v2 128K-256K

    GPT-5.587.5%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • ARC-AGI-2

    GPT-5.585%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • ARC-AGI-3

    GPT-5.50.4%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • ARC-AGI-1

    GPT-5.595.00%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

Multimodal

  • MMMU-Pro

    GPT-5.581.2%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • MMMU-Pro w/ Python

    GPT-5.583.2%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • OfficeQA Pro

    GPT-5.554.1%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • BabyVision w/ Python

    GPT-5.5—
    MiniMax M3.1 Flash91.0%
    Source

    Not directly comparable

  • CharXiv

    GPT-5.5—
    MiniMax M3.1 Flash82.5%
    Source

    Not directly comparable

Knowledge

  • GPQA

    GPT-5.593.6%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • GPQA-D

    GPT-5.593.6%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • HLE

    GPT-5.552.2%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • HLE w/o tools

    GPT-5.541.4%
    Source
    MiniMax M3.1 Flash43.4%
    Source

    MiniMax M3.1 Flash leads this result

  • GPQA Diamond (Vals)

    GPT-5.593.2%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • MMLU-Pro (Vals)

    GPT-5.588.1%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

Math

  • FrontierMath (legacy)

    GPT-5.551.7%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • FrontierMath v2 (Tiers 1-3)

    GPT-5.585.263%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    GPT-5.572.500%
    Source
    MiniMax M3.1 Flash—

    Not directly comparable

50 public results · 4 shared

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Last updated October 19, 2026