Model comparison

GPT-5.4 mini vs Inkling-Small

Updated July 30, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

GPT-5.4 mini

OpenAI

55.8/100

Estimated · Public rank #81

90% interval 44.3–67.3

Inkling-Small

Thinking Machines Lab

—

Evidence status unavailable

90% interval unavailable

At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner.

6 results are shared. Category rows based on different benchmark sets are marked directional and do not name a winner.

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
Inkling-Small
Inkling-Small has the larger documented context window.
Confidence: documented
Chat turn cost
1K fresh input + 500 output tokens
Inkling-Small
Inkling-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-Small
Inkling-Small 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
Inkling-Small
Inkling-Small has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.
Confidence: listed-rates
Coding work
Code generation, repair, and software-engineering tasks
Not enough matched evidence
No shared weighted benchmark basis supports a winner.
Confidence: limited
Agentic work
Tool use, computer use, and multi-step task completion
Not enough matched evidence
The category averages use different weighted benchmark sets, so they are directional rather than like-for-like.
Confidence: limited

What is actually comparable

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

8 GPT-5.4 mini only

6 Shared

14 Inkling-Small only

Shared results: 6
GPT-5.4 mini only: 8
Inkling-Small only: 14
Like-for-like categories: 1 / 8

2 categories use different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Category results, on a stated basis

Each row states whether both averages use the same weighted benchmark set. Directional and not-comparable rows remain visible, but they never receive a winner in this template.

Knowledge

Like-for-like

GPT-5.4 mini: 47.8
Inkling-Small: 53.4
Weighted basis: 2 vs 2 rows
Reading: Inkling-Small leads

Agentic

Directional only

GPT-5.4 mini: 65.7
Inkling-Small: 70.1
Weighted basis: 2 vs 2 rows
Reading: Directional only

Multimodal

Directional only

GPT-5.4 mini: 76.6
Inkling-Small: 76.6
Weighted basis: 1 vs 2 rows
Reading: Directional only

Coding

Not comparable

GPT-5.4 mini: Not measured
Inkling-Small: 62.4
Weighted basis: 0 vs 3 rows
Reading: Not comparable

Reasoning

Not comparable

GPT-5.4 mini: Not measured
Inkling-Small: 40.1
Weighted basis: 0 vs 1 rows
Reading: Not comparable

Math

Not comparable

GPT-5.4 mini: 21.7
Inkling-Small: 92.9
Weighted basis: 2 vs 2 rows
Reading: Not comparable

Multilingual

Not comparable

GPT-5.4 mini: Not measured
Inkling-Small: Not measured
Weighted basis: 0 vs 0 rows
Reading: Not comparable

Instruction following

Not comparable

GPT-5.4 mini: Not measured
Inkling-Small: 82.2
Weighted basis: 0 vs 1 rows
Reading: Not comparable

Category averages with the server-provided evidence basis for GPT-5.4 mini and Inkling-Small
Category	GPT-5.4 mini	Inkling-Small	Weighted basis	Reading
Knowledge	47.8	53.4	Like-for-like2 vs 2 rows	Inkling-Small leads
Agentic	65.7	70.1	Directional only2 vs 2 rows	Directional only
Multimodal	76.6	76.6	Directional only1 vs 2 rows	Directional only
Coding	Not measured	62.4	Not comparable0 vs 3 rows	Not comparable
Reasoning	Not measured	40.1	Not comparable0 vs 1 rows	Not comparable
Math	21.7	92.9	Not comparable2 vs 2 rows	Not comparable
Multilingual	Not measured	Not measured	Not comparable0 vs 0 rows	Not comparable
Instruction following	Not measured	82.2	Not comparable0 vs 1 rows	Not comparable

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.

HLE
Knowledge
GPT-5.4 mini: 41.5%Inkling-Small: 47.8%Normalized gap 6.3GPT-5.4 mini source Inkling-Small source
Terminal-Bench 2.0
Agentic
GPT-5.4 mini: 60%Inkling-Small: 64.7%Normalized gap 4.7GPT-5.4 mini source Inkling-Small source
MMMU-Pro
Multimodal
GPT-5.4 mini: 76.6%Inkling-Small: 74%Normalized gap 2.6GPT-5.4 mini source Inkling-Small source
GPQA
Knowledge
GPT-5.4 mini: 88%Inkling-Small: 89.5%Normalized gap 1.5GPT-5.4 mini source Inkling-Small source

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-Small: $0.0013; Fits in one request

Inkling-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-Small: $0.03332; Fits in one request

Inkling-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-Small: $0.0492; Fits in one request

Inkling-Small has the lower modeled cost

Costs use the listed standard API rates.

Specification differences

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

SpecificationGPT-5.4 miniInkling-Small

Context window

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

GPT-5.4 mini

400K

OpenAI GPT-5.4 mini model documentation

Inkling-Small

API model ID

GPT-5.4 mini

gpt-5.4-mini

OpenAI GPT-5.4 mini model documentation

Inkling-Small

Not sourced

Cached-input rate

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

GPT-5.4 mini

$0.075 per 1M cached input tokens

OpenAI pricing

Inkling-Small

$0.116 per 1M cached input tokens

Documented inputs

GPT-5.4 mini

text, image

OpenAI model catalog

Inkling-Small

Not sourced

Documented outputs

GPT-5.4 mini

text

OpenAI model catalog

Inkling-Small

Not sourced

Provider availability

GPT-5.4 mini

Generally Available · OpenAI Responses API

OpenAI model catalog

Inkling-Small

Not sourced

Reasoning profile

GPT-5.4 mini

Reasoning

Inkling-Small

Hybrid

Weight access

GPT-5.4 mini

Proprietary

Inkling-Small

Open Weight

License

GPT-5.4 mini

Proprietary

Inkling-Small

Open Weight

Release date

GPT-5.4 mini

2026-03-17

Inkling-Small

2026-07-30

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: At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner.
Workload cost: Repository review: $0.051 vs $0.03332. Cache-heavy agent loop: $0.075 vs $0.0492.
Context tradeoff: Inkling-Small 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 evidence28 rows

Agentic

Terminal-Bench 2.0
GPT-5.4 mini60%
Source
Inkling-Small64.7%
Source
Inkling-Small leads this result
OSWorld-Verified
GPT-5.4 mini72.1%
Source
Inkling-Small—
Not directly comparable
MCP Atlas
GPT-5.4 mini57.7%
Source
Inkling-Small79.6%
Source
Inkling-Small leads this result
Toolathlon
GPT-5.4 mini42.9%
Source
Inkling-Small—
Not directly comparable
τ²-bench results
GPT-5.4 mini93.4%
Source
Inkling-Small—
Not directly comparable
BrowseComp
GPT-5.4 mini—
Inkling-Small77.4%
Source
Not directly comparable
Toolathlon-Verified
GPT-5.4 mini—
Inkling-Small54.4%
Source
Not directly comparable

Coding

Vibe Code Bench
GPT-5.4 mini47.97%
Source
Inkling-Small—
Not directly comparable
FrontierCode 1.1 Main
GPT-5.4 mini27.0%
Source
Inkling-Small—
Not directly comparable
SWE-bench Verified
GPT-5.4 mini—
Inkling-Small80.2%
Source
Not directly comparable
SWE-bench Pro
GPT-5.4 mini—
Inkling-Small55.9%
Source
Not directly comparable
Terminal-Bench 2.0
GPT-5.4 mini—
Inkling-Small64.7%
Source
Not directly comparable
SciCode
GPT-5.4 mini—
Inkling-Small48.7%
Source
Not directly comparable

Reasoning

ARC-AGI-2
GPT-5.4 mini—
Inkling-Small40.1%
Source
Not directly comparable
CritPt
GPT-5.4 mini—
Inkling-Small8.3%
Source
Not directly comparable

Knowledge

GPQA
GPT-5.4 mini88%
Source
Inkling-Small89.5%
Source
Inkling-Small leads this result
HLE
GPT-5.4 mini41.5%
Source
Inkling-Small47.8%
Source
Inkling-Small leads this result
HLE w/o tools
GPT-5.4 mini28.2%
Source
Inkling-Small31.6%
Source
Inkling-Small leads this result
GPQA-D
GPT-5.4 mini—
Inkling-Small89.5%
Source
Not directly comparable

Math

FrontierMath v2 (Tiers 1-3)
GPT-5.4 mini28.280%
Source
Inkling-Small—
Not directly comparable
FrontierMath v2 (Tier 4)
GPT-5.4 mini2.080%
Source
Inkling-Small—
Not directly comparable
AIME26
GPT-5.4 mini—
Inkling-Small95.5%
Source
Not directly comparable
HMMT Feb 2026
GPT-5.4 mini—
Inkling-Small90.2%
Source
Not directly comparable

Multimodal

MMMU-Pro
GPT-5.4 mini76.6%
Source
Inkling-Small74%
Source
GPT-5.4 mini leads this result
MMMU-Pro w/ Python
GPT-5.4 mini78%
Source
Inkling-Small—
Not directly comparable
CharXiv
GPT-5.4 mini—
Inkling-Small81.3%
Source
Not directly comparable
CharXiv w/o tools
GPT-5.4 mini—
Inkling-Small77.4%
Source
Not directly comparable

Instruction following

IFBench
GPT-5.4 mini—
Inkling-Small82.2%
Source
Not directly comparable

Frequently asked questions

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

At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner. The page therefore keeps the decision tied to the specific documented workload.

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

The published evidence does not provide a shared weighted coding basis for both models, so BenchLM does not name a coding winner.

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

The current agentic tasks averages use different weighted benchmark sets, so BenchLM does not name a winner from them. Read the shared benchmark rows directly and test the models on the same task set.

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

For the stated presets, chat costs $0.003 on GPT-5.4 mini and $0.0013 on Inkling-Small; repository review costs $0.051 and $0.03332; the cache-heavy agent loop costs $0.075 and $0.0492. Costs use the listed standard API rates.

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

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

Related comparisons

Compare API pricing Read the methodology Open the model selector

Last updated July 30, 2026

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GPT-5.4 mini vs Inkling-Small

Which one for your work

Long documents

Chat turn cost

Cache-heavy agent loop cost

Repository review cost

Coding work

Agentic work

What is actually comparable

Category results, on a stated basis

Knowledge

Agentic

Multimodal

Coding

Reasoning

Math

Multilingual

Instruction following

Shape of the matched evidence

What each workload costs

Chat turn

Repository review

Cache-heavy agent loop

Specification differences

Context window

API model ID

Cached-input rate

Documented inputs

Documented outputs

Provider availability

Reasoning profile

Weight access

License

Release date

Benchmark evidence

Agentic

Coding

Reasoning

Knowledge

Math

Multimodal

Instruction following

Frequently asked questions

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

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

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

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

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

Related comparisons

Watch GPT-5.4 mini vs Inkling-Small