Skip to main content
BenchLM
Data

GPT-5.4 mini vs Inkling 2 Small

Updated November 7, 2026. Rank says Inkling 2 Small is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

Share or export
Share on XLinkedInAPI/MCP

Decision reading

Inkling 2 Small has the higher public point estimate, 59.06 versus 53.3. Their conditional score ranges overlap. These ranges do not establish rank confidence. 2 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

53.3/100

Supported · Public rank #85

90% interval 42.3–64.3

Model B
Thinking Machines Lab logo

Thinking Machines Lab

59.06/100

Estimated · Public rank #56

Conditional range 44.7–73.4

Shared results
2
GPT-5.4 mini only
20
Inkling 2 Small only
23
Like-for-like categories
2 / 8
Supported: GPT-5.4 mini · Estimated: Inkling 2 Small. 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

    Inkling 2 Small

    Inkling 2 Small has the higher public coding point estimate, 59.7 to 35.6, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Agentic work

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

    Inkling 2 Small

    Inkling 2 Small has the higher public agentic point estimate, 59.9 to 36, 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

    Inkling 2 Small

    Inkling 2 Small has the larger documented context window.

    Confidence: documented
Show secondary and unsupported calls
  • Chat turn cost

    1K fresh input + 500 output tokens

    Inkling 2 Small

    Inkling 2 Small 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

    Inkling 2 Small

    Inkling 2 Small has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Repository review cost

    50K fresh input + 3K output tokens

    Inkling 2 Small

    Inkling 2 Small has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

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.

35.6GPT-5.4 mini59.7Inkling 2 Small

Like-for-like · BenchAlign v5.8

Inkling 2 Small 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.

Agentic

Like-for-like
GPT-5.4 mini
36.0
Supported · #80/131
Inkling 2 Small
59.9
Supported · #26/131
Basis
BenchAlign v5.8 lane · 6 vs 5 public rows
Reading
Inkling 2 Small leads

Coding

Like-for-like
GPT-5.4 mini
35.6
Supported · #83/157
Inkling 2 Small
59.7
Supported · #20/157
Basis
BenchAlign v5.8 lane · 5 vs 6 public rows
Reading
Inkling 2 Small leads

Multimodal

Directional only
GPT-5.4 mini
72.8
#31/59
Inkling 2 Small
86.6
#12/59
Basis
Provisional lane · 1 vs 1 weighted rows
Reading
Directional only

Knowledge

Directional only
GPT-5.4 mini
51.0
Supported · #77/178
Inkling 2 Small
60.4
Estimated · #46/178
Basis
BenchAlign v5.8 lane · 5 vs 2 public rows
Reading
Directional only

Reasoning

Not comparable
GPT-5.4 mini
42.0
Unranked · 4 rankable rows
Inkling 2 Small
86.1
Unranked · 2 rankable rows
Basis
Provisional lane · 1 vs 1 weighted rows
Reading
Not comparable

Multilingual

Not comparable
GPT-5.4 mini
Not ranked
Inkling 2 Small
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
GPT-5.4 mini
89.9
#30/157
Inkling 2 Small
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
GPT-5.4 mini
52.4
Unranked · 2 rankable rows
Inkling 2 Small
85.9
Unranked · 2 rankable rows
Basis
Provisional lane · 2 vs 1 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-5.4 mini
$0.003
Fits in one request
Inkling 2 Small
$0.0008
Fits in one request

Inkling 2 Small has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

GPT-5.4 mini
$0.051
Fits in one request
Inkling 2 Small
$0.018
Fits in one request

Inkling 2 Small 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-5.4 mini
$0.075
Fits in one request
Inkling 2 Small
$0.022
Fits in one request

Inkling 2 Small 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-5.4 mini

$0.075 per 1M cached input tokens

OpenAI pricing

Inkling 2 Small

$0.03 per 1M cached input tokens

Tinker models and pricing

Provider availability

GPT-5.4 mini

Generally Available · OpenAI Responses API

OpenAI model catalog

Inkling 2 Small

Not sourced

Reasoning profile

GPT-5.4 mini

Reasoning

Inkling 2 Small

Hybrid

Weight access

GPT-5.4 mini

Proprietary

Inkling 2 Small

Proprietary

License

GPT-5.4 mini

Proprietary

Inkling 2 Small

Proprietary

Release date

GPT-5.4 mini

2026-03-17

Inkling 2 Small

2026-11-05

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
Inkling 2 Small has the higher public point estimate, 59.06 versus 53.3. Their conditional score ranges overlap. These ranges do not establish rank confidence.
Workload cost
Repository review: $0.051 vs $0.018. Cache-heavy agent loop: $0.075 vs $0.022.
Context tradeoff
Inkling 2 Small has the larger documented window (1M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, GPT-5.4 mini or Inkling 2 Small?

Inkling 2 Small has the higher public point estimate, 59.06 versus 53.3. 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-5.4 mini or Inkling 2 Small?

Inkling 2 Small has the higher public coding point estimate, 59.7 to 35.6, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which is better for agentic tasks, GPT-5.4 mini or Inkling 2 Small?

Inkling 2 Small has the higher public agentic tasks point estimate, 59.9 to 36, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which costs less, GPT-5.4 mini or Inkling 2 Small?

For the stated presets, chat costs $0.003 on GPT-5.4 mini and $0.0008 on Inkling 2 Small; repository review costs $0.051 and $0.018; the cache-heavy agent loop costs $0.075 and $0.022. Costs use the listed standard API rates.

Which has the larger context window, GPT-5.4 mini or Inkling 2 Small?

Inkling 2 Small has the larger documented context window: 1M, compared with 400K.

Benchmark evidence

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

Browse raw public benchmark evidence45 rows

Agentic

  • Terminal-Bench 2.0

    GPT-5.4 mini60%
    Source
    Inkling 2 Small—

    Not directly comparable

  • OSWorld-Verified

    GPT-5.4 mini72.1%
    Source
    Inkling 2 Small—

    Not directly comparable

  • MCP Atlas

    GPT-5.4 mini57.7%
    Source
    Inkling 2 Small85%
    Source

    Inkling 2 Small leads this result

  • Toolathlon

    GPT-5.4 mini42.9%
    Source
    Inkling 2 Small—

    Not directly comparable

  • τ²-bench results

    GPT-5.4 mini93.4%
    Source
    Inkling 2 Small—

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    GPT-5.4 mini54.7%
    Source
    Inkling 2 Small—

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-5.4 mini—
    Inkling 2 Small85.1%
    Source

    Not directly comparable

  • BrowseComp

    GPT-5.4 mini—
    Inkling 2 Small90.2%
    Source

    Not directly comparable

  • DeepSearchQA

    GPT-5.4 mini—
    Inkling 2 Small90.9%
    Source

    Not directly comparable

  • JobBench

    GPT-5.4 mini—
    Inkling 2 Small70.5%
    Source

    Not directly comparable

Coding

  • Terminal-Bench 2.0

    GPT-5.4 mini60.0%
    Source
    Inkling 2 Small—

    Not directly comparable

  • Vibe Code Bench

    GPT-5.4 mini47.97%
    Source
    Inkling 2 Small—

    Not directly comparable

  • FrontierCode 1.1 Main

    GPT-5.4 mini27.0%
    Source
    Inkling 2 Small—

    Not directly comparable

  • LiveCodeBench (Vals)

    GPT-5.4 mini81.5%
    Source
    Inkling 2 Small—

    Not directly comparable

  • SWE-bench (Vals)

    GPT-5.4 mini73.0%
    Source
    Inkling 2 Small—

    Not directly comparable

  • SWE-bench Verified

    GPT-5.4 mini—
    Inkling 2 Small82.2%
    Source

    Not directly comparable

  • SWE Multilingual

    GPT-5.4 mini—
    Inkling 2 Small81.2%
    Source

    Not directly comparable

  • sweMarathon

    GPT-5.4 mini—
    Inkling 2 Small38.8%
    Source

    Not directly comparable

  • Terminal-Bench 2.1

    GPT-5.4 mini—
    Inkling 2 Small85.1%
    Source

    Not directly comparable

  • DeepSWE

    GPT-5.4 mini—
    Inkling 2 Small72.1%
    Source

    Not directly comparable

  • PostTrainBench v1.2

    GPT-5.4 mini—
    Inkling 2 Small31.9%
    Source

    Not directly comparable

Reasoning

  • ARC-AGI-1

    GPT-5.4 mini63.70%
    Source
    Inkling 2 Small—

    Not directly comparable

  • ARC-AGI-2

    GPT-5.4 mini18.9%
    Source
    Inkling 2 Small—

    Not directly comparable

  • LongBench v2

    GPT-5.4 mini—
    Inkling 2 Small70.6%
    Source

    Not directly comparable

Multimodal

  • MMMU-Pro

    GPT-5.4 mini76.6%
    Source
    Inkling 2 Small—

    Not directly comparable

  • MMMU-Pro w/ Python

    GPT-5.4 mini78%
    Source
    Inkling 2 Small—

    Not directly comparable

  • CharXiv

    GPT-5.4 mini—
    Inkling 2 Small87.7%
    Source

    Not directly comparable

  • CharXiv w/o tools

    GPT-5.4 mini—
    Inkling 2 Small85.6%
    Source

    Not directly comparable

  • Chartography (no tools)

    GPT-5.4 mini—
    Inkling 2 Small36.7%
    Source

    Not directly comparable

  • Chartography (tools)

    GPT-5.4 mini—
    Inkling 2 Small80.4%
    Source

    Not directly comparable

  • BabyVision

    GPT-5.4 mini—
    Inkling 2 Small68.6%
    Source

    Not directly comparable

  • BabyVision w/ Python

    GPT-5.4 mini—
    Inkling 2 Small93.7%
    Source

    Not directly comparable

  • ScreenSpot Pro

    GPT-5.4 mini—
    Inkling 2 Small83.8%
    Source

    Not directly comparable

  • PerceptionBench

    GPT-5.4 mini—
    Inkling 2 Small64.7%
    Source

    Not directly comparable

  • MathVision

    GPT-5.4 mini—
    Inkling 2 Small92.8%
    Source

    Not directly comparable

Knowledge

  • GPQA

    GPT-5.4 mini88%
    Source
    Inkling 2 Small93%
    Source

    Inkling 2 Small leads this result

  • HLE

    GPT-5.4 mini41.5%
    Source
    Inkling 2 Small—

    Not directly comparable

  • HLE w/o tools

    GPT-5.4 mini28.2%
    Source
    Inkling 2 Small—

    Not directly comparable

  • GPQA Diamond (Vals)

    GPT-5.4 mini83.1%
    Source
    Inkling 2 Small—

    Not directly comparable

  • MMLU-Pro (Vals)

    GPT-5.4 mini84.6%
    Source
    Inkling 2 Small—

    Not directly comparable

  • GPQA-D

    GPT-5.4 mini—
    Inkling 2 Small93.0%
    Source

    Not directly comparable

Math

  • FrontierMath v2 (Tiers 1-3)

    GPT-5.4 mini51.228%
    Source
    Inkling 2 Small—

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    GPT-5.4 mini9.756%
    Source
    Inkling 2 Small—

    Not directly comparable

  • HMMT Feb 2026

    GPT-5.4 mini—
    Inkling 2 Small95.8%
    Source

    Not directly comparable

  • Apex

    GPT-5.4 mini—
    Inkling 2 Small63.5%
    Source

    Not directly comparable

45 public results · 2 shared

Watch GPT-5.4 mini vs Inkling 2 Small

One weekly email when material rank, price, or benchmark evidence changes make this matchup worth revisiting.

Read a sample issue

Join 6,100+ subscribers.

Last updated November 7, 2026