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Data

GPT-5.2-Codex vs MiMo-V2.6-Pro

Updated November 5, 2026. Rank says MiMo-V2.6-Pro is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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Decision reading

MiMo-V2.6-Pro has the higher public point estimate, 57.27 versus 56.6. Their conditional score ranges overlap. These ranges do not establish rank confidence. 1 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

56.6/100

Estimated · Public rank #61

Conditional range 46.9–66.3

Model B
Xiaomi logo

Xiaomi

57.27/100

Estimated · Public rank #58

Conditional range 47.5–67.0

Shared results
1
GPT-5.2-Codex only
4
MiMo-V2.6-Pro only
13
Like-for-like categories
1 / 8
Estimated: GPT-5.2-Codex and MiMo-V2.6-Pro. 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

    MiMo-V2.6-Pro

    MiMo-V2.6-Pro has the higher public coding point estimate, 57.1 to 44.5, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    MiMo-V2.6-Pro

    MiMo-V2.6-Pro has the larger documented context window.

    Confidence: documented
  • Chat turn cost

    1K fresh input + 500 output tokens

    MiMo-V2.6-Pro

    MiMo-V2.6-Pro 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
  • Cache-heavy agent loop cost

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

    MiMo-V2.6-Pro

    MiMo-V2.6-Pro has the lower estimated token cost for this stated workload. GPT-5.2-Codex has no published cached-input rate, so cached tokens use its listed input rate.

    Confidence: rate-fallback
  • Repository review cost

    50K fresh input + 3K output tokens

    MiMo-V2.6-Pro

    MiMo-V2.6-Pro 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

    GPT-5.2-Codex and MiMo-V2.6-Pro are scored on Estimated evidence for agentic, so the reading is directional rather than like-for-like.

    Confidence: limited

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.

44.5GPT-5.2-Codex57.1MiMo-V2.6-Pro

Like-for-like · BenchAlign v5.8

MiMo-V2.6-Pro 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.

A shared-evidence shape is not available.

BenchLM does not draw a radar or infer missing axes when the matched evidence is too sparse.

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-5.2-Codex
44.5
Supported · #59/156
MiMo-V2.6-Pro
57.1
Supported · #25/156
Basis
BenchAlign v5.8 lane · 3 vs 4 public rows
Reading
MiMo-V2.6-Pro leads · intervals overlap

Agentic

Directional only
GPT-5.2-Codex
45.1
Estimated · #66/135
MiMo-V2.6-Pro
56.6
Estimated · #40/135
Basis
BenchAlign v5.8 lane · 2 vs 9 public rows
Reading
Directional only

Knowledge

Directional only
GPT-5.2-Codex
57.5
Estimated · #54/177
MiMo-V2.6-Pro
62.3
Supported · #42/177
Basis
BenchAlign v5.8 lane · 0 vs 0 public rows
Reading
Directional only

Reasoning

Not comparable
GPT-5.2-Codex
81.5
Unranked · 2 rankable rows
MiMo-V2.6-Pro
82.5
Unranked · 2 rankable rows
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
GPT-5.2-Codex
77.2
Unranked · 1 rankable row
MiMo-V2.6-Pro
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
GPT-5.2-Codex
Not ranked
MiMo-V2.6-Pro
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
GPT-5.2-Codex
93.8
#5/157
MiMo-V2.6-Pro
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
GPT-5.2-Codex
Not ranked
MiMo-V2.6-Pro
Not ranked
Basis
Provisional lane · 0 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-5.2-Codex
$0.00875
Fits in one request
MiMo-V2.6-Pro
$0.00087
Fits in one request

MiMo-V2.6-Pro has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

GPT-5.2-Codex
$0.1295
Fits in one request
MiMo-V2.6-Pro
$0.02436
Fits in one request

MiMo-V2.6-Pro 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-5.2-Codex
$0.525
Fits in one request
Cached input priced at the published list-input rate
MiMo-V2.6-Pro
$0.01812
Fits in one request

MiMo-V2.6-Pro has the lower modeled cost

GPT-5.2-Codex has no published cached-input rate, so cached tokens use its listed input rate.

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.

Context window

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

GPT-5.2-Codex

400K

API model ID

GPT-5.2-Codex

Not sourced

MiMo-V2.6-Pro

Not sourced

Cached-input rate

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

GPT-5.2-Codex

Not published

MiMo-V2.6-Pro

$0.0036 per 1M cached input tokens

Xiaomi MiMo-V2.6 launch

Documented inputs

GPT-5.2-Codex

Not sourced

MiMo-V2.6-Pro

Not sourced

Documented outputs

GPT-5.2-Codex

Not sourced

MiMo-V2.6-Pro

Not sourced

Provider availability

GPT-5.2-Codex

Not sourced

MiMo-V2.6-Pro

Not sourced

Reasoning profile

GPT-5.2-Codex

Reasoning

MiMo-V2.6-Pro

Reasoning

Weight access

GPT-5.2-Codex

Proprietary

MiMo-V2.6-Pro

Open Weight

License

GPT-5.2-Codex

Proprietary

MiMo-V2.6-Pro

Open Weight

Release date

GPT-5.2-Codex

2025-12-18

MiMo-V2.6-Pro

2026-09-22

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
MiMo-V2.6-Pro has the higher public point estimate, 57.27 versus 56.6. Their conditional score ranges overlap. These ranges do not establish rank confidence.
Workload cost
Repository review: $0.1295 vs $0.02436. Cache-heavy agent loop: $0.525 vs $0.01812.
Context tradeoff
MiMo-V2.6-Pro has the larger documented window (1M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, GPT-5.2-Codex or MiMo-V2.6-Pro?

MiMo-V2.6-Pro has the higher public point estimate, 57.27 versus 56.6. 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-5.2-Codex or MiMo-V2.6-Pro?

MiMo-V2.6-Pro has the higher public coding point estimate, 57.1 to 44.5, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which is better for agentic tasks, GPT-5.2-Codex or MiMo-V2.6-Pro?

MiMo-V2.6-Pro scores higher for agentic tasks on the public lane, 56.6 to 45.1. GPT-5.2-Codex and MiMo-V2.6-Pro are 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-5.2-Codex or MiMo-V2.6-Pro?

For the stated presets, chat costs $0.00875 on GPT-5.2-Codex and $0.00087 on MiMo-V2.6-Pro; repository review costs $0.1295 and $0.02436; the cache-heavy agent loop costs $0.525 and $0.01812. GPT-5.2-Codex has no published cached-input rate, so cached tokens use its listed input rate.

Which has the larger context window, GPT-5.2-Codex or MiMo-V2.6-Pro?

MiMo-V2.6-Pro has the larger documented context window: 1M, compared with 400K.

Self-host vs API cost

Estimates at 50,000 req/day · 1000 tokens/req average.

GPT-5.2-Codex
API / mo$11,813
Self-host / moNot listed
Break-even—
Proprietary model — self-hosting not applicable.
MiMo-V2.6-Pro
API / mo$979
Self-host / mo$37,843
Break-even2.2B/day
Model the full break-even

Benchmark evidence

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

Browse raw public benchmark evidence18 rows

Agentic

  • Gert Labs

    GPT-5.2-Codex51.79%
    Source
    MiMo-V2.6-Pro—

    Not directly comparable

  • JobBench

    GPT-5.2-Codex26.0%
    Source
    MiMo-V2.6-Pro62.0%
    Source

    MiMo-V2.6-Pro leads this result

  • Toolathlon-Verified

    GPT-5.2-Codex—
    MiMo-V2.6-Pro76.9%
    Source

    Not directly comparable

  • AutomationBench

    GPT-5.2-Codex—
    MiMo-V2.6-Pro53.1%
    Source

    Not directly comparable

  • Agents' Last Exam

    GPT-5.2-Codex—
    MiMo-V2.6-Pro31.6%
    Source

    Not directly comparable

  • Terminal-Bench 4.0

    GPT-5.2-Codex—
    MiMo-V2.6-Pro34.90%
    Source

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-5.2-Codex—
    MiMo-V2.6-Pro89.9%
    Source

    Not directly comparable

  • OSWorld-Verified

    GPT-5.2-Codex—
    MiMo-V2.6-Pro82%
    Source

    Not directly comparable

  • CyberGym

    GPT-5.2-Codex—
    MiMo-V2.6-Pro94.0%
    Source

    Not directly comparable

  • ExploitGym

    GPT-5.2-Codex—
    MiMo-V2.6-Pro17.8%
    Source

    Not directly comparable

Coding

  • Vibe Code Bench

    GPT-5.2-Codex37.91%
    Source
    MiMo-V2.6-Pro—

    Not directly comparable

  • LiveCodeBench (Vals)

    GPT-5.2-Codex88.0%
    Source
    MiMo-V2.6-Pro—

    Not directly comparable

  • SWE-bench (Vals)

    GPT-5.2-Codex72.4%
    Source
    MiMo-V2.6-Pro—

    Not directly comparable

  • DeepSWE

    GPT-5.2-Codex—
    MiMo-V2.6-Pro71.9%
    Source

    Not directly comparable

  • ProgramBench

    GPT-5.2-Codex—
    MiMo-V2.6-Pro26.5%
    Source

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-5.2-Codex—
    MiMo-V2.6-Pro89.9%
    Source

    Not directly comparable

  • Bug Hunt Bench

    GPT-5.2-Codex—
    MiMo-V2.6-Pro22.7 fixes
    Source

    Not directly comparable

Reasoning

  • STEMBench

    GPT-5.2-Codex—
    MiMo-V2.6-Pro2.17
    Source

    Not directly comparable

18 public results · 1 shared

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Last updated November 5, 2026