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Model A
GPT-5.5

OpenAI

73.27/100

Supported · Public rank #9

90% interval 71.075.6

GPT-5.5 vs MiMo-V2-Flash

Updated September 4, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

Xiaomi logo
Model B
MiMo-V2-Flash

Xiaomi

52.18/100

Supported · Public rank #125

90% interval 38.166.3

Decision reading

GPT-5.5 has the higher public score, 73.27 versus 52.18, and the 90% score intervals do not overlap.

1 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

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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.

  • Long documents

    Prompts that approach the documented context limit

    GPT-5.5

    GPT-5.5 has the larger documented context window.

    Confidence: documented

Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    MiMo-V2-Flash is scored on Estimated evidence for coding, so the reading is directional rather than like-for-like.

    Confidence: limited

  • Agentic work

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

    Not enough matched evidence

    MiMo-V2-Flash is scored on Estimated evidence for agentic, so the reading is directional rather than like-for-like.

    Confidence: limited

  • Chat turn cost

    1K fresh input + 500 output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

  • Cache-heavy agent loop cost

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

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

  • Repository review cost

    50K fresh input + 3K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

What is actually comparable

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

Shared results
1
GPT-5.5 only
37
MiMo-V2-Flash only
3
Like-for-like categories
0 / 8

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

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign 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.

Agentic

Directional only
GPT-5.5
63.9
Supported · #15/151
MiMo-V2-Flash
49.6
Estimated · #68/151
Basis
BenchAlign lane · 13 vs 0 public rows
Reading
Directional only

Coding

Directional only
GPT-5.5
67.7
Supported · #8/183
MiMo-V2-Flash
51.9
Estimated · #59/183
Basis
BenchAlign lane · 9 vs 1 public rows
Reading
Directional only

Knowledge

Directional only
GPT-5.5
73.3
Supported · #7/181
MiMo-V2-Flash
43.9
Estimated · #122/181
Basis
BenchAlign lane · 6 vs 2 public rows
Reading
Directional only

Instruction following

Directional only
GPT-5.5
92.9
#7/120
MiMo-V2-Flash
46.2
#87/120
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Directional only

Reasoning

Not comparable
GPT-5.5
63.5
#15/22
MiMo-V2-Flash
46.2
Unranked · 2 rankable rows
Basis
Provisional lane · 2 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
GPT-5.5
69.6
Unranked · 3 rankable rows
MiMo-V2-Flash
Not ranked
Basis
Provisional lane · 2 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
GPT-5.5
Not ranked
MiMo-V2-Flash
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
GPT-5.5
71.3
#19/48
MiMo-V2-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) differ from the provisional-lane categories. Unranked scores sit on the lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

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.

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
MiMo-V2-Flash
Self-hosted; infrastructure cost varies
Fits in one request

MiMo-V2-Flash has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

GPT-5.5
$0.34
Fits in one request
MiMo-V2-Flash
Self-hosted; infrastructure cost varies
Fits in one request

MiMo-V2-Flash has no comparable published API token rate.

Cache-heavy agent loop

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

GPT-5.5
$0.5
Fits in one request
MiMo-V2-Flash
Self-hosted; infrastructure cost varies
Fits in one request
Cached-input rate unavailable

MiMo-V2-Flash has no comparable published API token rate.

Specification differences

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

Context window

Maximum documented context; output-token limits may be lower.

MiMo-V2-Flash

256K

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

MiMo-V2-Flash

No comparable hosted API rate

Documented inputs

GPT-5.5

Not sourced

MiMo-V2-Flash

Not sourced

Documented outputs

GPT-5.5

Not sourced

MiMo-V2-Flash

Not sourced

Provider availability

GPT-5.5

Not sourced

MiMo-V2-Flash

Not sourced

Reasoning profile

GPT-5.5

Reasoning

MiMo-V2-Flash

Reasoning

Weight access

GPT-5.5

Proprietary

MiMo-V2-Flash

Open Weight

License

GPT-5.5

Proprietary

MiMo-V2-Flash

Open Weight

Release date

GPT-5.5

2026-04-23

MiMo-V2-Flash

2026-03-15

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 score, 73.27 versus 52.18, and the 90% score intervals do not overlap.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
GPT-5.5 has the larger documented window (1M).

Run the same representative tasks against both endpoints before changing production traffic.

Benchmark evidence

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

Browse raw public benchmark evidence41 rows

Agentic

  • Terminal-Bench 2.0

    GPT-5.582%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • CyberGym

    GPT-5.581.8%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • BrowseComp

    GPT-5.584.4%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • OSWorld-Verified

    GPT-5.578.7%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • MCP Atlas

    GPT-5.575.3%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • Toolathlon

    GPT-5.555.6%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • τ²-bench results

    GPT-5.598%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • Gert Labs

    GPT-5.572.93%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • ResearchClawBench

    GPT-5.517.0%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • OSWorld 2.0

    GPT-5.513.0%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • JobBench

    GPT-5.542.7%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • ExploitGym

    GPT-5.513.4%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    GPT-5.576.4%
    Source
    MiMo-V2-Flash

    Not directly comparable

Coding

  • SWE-bench Pro

    GPT-5.558.6%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • Terminal-Bench 2.0

    GPT-5.582.0%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • Vibe Code Bench

    GPT-5.569.85%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • React Native Evals

    GPT-5.584.7%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • cursorBench31

    GPT-5.559.2%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • cursorBench32

    GPT-5.558.4%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • FrontierCode 1.1 Main

    GPT-5.543.0%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • LiveCodeBench (Vals)

    GPT-5.585.3%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • SWE-bench (Vals)

    GPT-5.582.6%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • SWE-bench Verified

    GPT-5.5
    MiMo-V2-Flash73.4%
    Source

    Not directly comparable

Reasoning

  • MRCR v2 64K-128K

    GPT-5.583.1%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • MRCR v2 128K-256K

    GPT-5.587.5%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • ARC-AGI-2

    GPT-5.585%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • ARC-AGI-3

    GPT-5.50.4%
    Source
    MiMo-V2-Flash

    Not directly comparable

Knowledge

  • GPQA

    GPT-5.593.6%
    Source
    MiMo-V2-Flash83.7%
    Source

    GPT-5.5 leads this result

  • GPQA-D

    GPT-5.593.6%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • HLE

    GPT-5.552.2%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • HLE w/o tools

    GPT-5.541.4%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • GPQA Diamond (Vals)

    GPT-5.593.2%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • MMLU-Pro (Vals)

    GPT-5.588.1%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • MMLU-Pro

    GPT-5.5
    MiMo-V2-Flash84.9%
    Source

    Not directly comparable

Math

  • FrontierMath (legacy)

    GPT-5.551.7%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • FrontierMath v2 (Tiers 1-3)

    GPT-5.551.700%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    GPT-5.535.400%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • AIME 2025

    GPT-5.5
    MiMo-V2-Flash94.1%
    Source

    Not directly comparable

Multimodal

  • MMMU-Pro

    GPT-5.581.2%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • MMMU-Pro w/ Python

    GPT-5.583.2%
    Source
    MiMo-V2-Flash

    Not directly comparable

  • OfficeQA Pro

    GPT-5.554.1%
    Source
    MiMo-V2-Flash

    Not directly comparable

Frequently asked questions

Which is better, GPT-5.5 or MiMo-V2-Flash?

GPT-5.5 has the higher public score, 73.27 versus 52.18, and the 90% score intervals do not overlap. That is the clearest overall quality signal in the current public data.

Which is better for coding, GPT-5.5 or MiMo-V2-Flash?

GPT-5.5 scores higher for coding on the public lane, 67.7 to 51.9. MiMo-V2-Flash is scored on Estimated evidence for coding, so the reading is directional rather than like-for-like. BenchLM does not name a winner for coding from a directional reading; read the shared benchmark rows directly and test the models on the same task set.

Which is better for agentic tasks, GPT-5.5 or MiMo-V2-Flash?

GPT-5.5 scores higher for agentic tasks on the public lane, 63.9 to 49.6. MiMo-V2-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 MiMo-V2-Flash?

Both models do not have comparable published API token rates, so this page does not name a universal price winner.

Which has the larger context window, GPT-5.5 or MiMo-V2-Flash?

GPT-5.5 has the larger documented context window: 1M, compared with 256K.

Related comparisons

Last updated September 4, 2026

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