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Model A
GPT-6 Astra

OpenAI

81.88/100

Estimated · Public rank #5

90% interval 70.493.4

GPT-6 Astra vs Inkling-Small

Updated September 3, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

Thinking Machines Lab logo
Model B
Inkling-Small

Thinking Machines Lab

63.47/100

Supported · Public rank #55

90% interval 57.369.6

Decision reading

GPT-6 Astra has the higher public score, 81.88 versus 63.47, and the 90% score intervals do not overlap.

3 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

    GPT-6 Astra

    GPT-6 Astra 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

    No shared weighted benchmark basis supports a winner.

    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.

Shared results
3
GPT-6 Astra only
13
Inkling-Small only
17
Like-for-like categories
1 / 8

1 category uses 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.

Reasoning

Like-for-like
GPT-6 Astra
95.0
Inkling-Small
40.1
Weighted basis
1 vs 1 rows
Reading
GPT-6 Astra leads

Knowledge

Directional only
GPT-6 Astra
96.0
Inkling-Small
53.4
Weighted basis
1 vs 2 rows
Reading
Directional only

Agentic

Not comparable
GPT-6 Astra
Not measured
Inkling-Small
70.1
Weighted basis
0 vs 2 rows
Reading
Not comparable

Coding

Not comparable
GPT-6 Astra
Not measured
Inkling-Small
62.4
Weighted basis
0 vs 3 rows
Reading
Not comparable

Math

Not comparable
GPT-6 Astra
97.6
Inkling-Small
92.9
Weighted basis
1 vs 2 rows
Reading
Not comparable

Multilingual

Not comparable
GPT-6 Astra
Not measured
Inkling-Small
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Multimodal

Not comparable
GPT-6 Astra
Not measured
Inkling-Small
76.6
Weighted basis
0 vs 2 rows
Reading
Not comparable

Instruction following

Not comparable
GPT-6 Astra
Not measured
Inkling-Small
82.2
Weighted basis
0 vs 1 rows
Reading
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.

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-6 Astra
$0.035
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-6 Astra
$0.65
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-6 Astra
$0.9
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.

Cached-input rate

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

GPT-6 Astra

$1 per 1M cached input tokens

OpenAI GPT-6 Astra model documentation

Inkling-Small

$0.116 per 1M cached input tokens

Reasoning profile

GPT-6 Astra

Reasoning

Inkling-Small

Hybrid

Weight access

GPT-6 Astra

Proprietary

Inkling-Small

Open Weight

License

GPT-6 Astra

Proprietary

Inkling-Small

Open Weight

Release date

GPT-6 Astra

2026-09-03

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
GPT-6 Astra has the higher public score, 81.88 versus 63.47, and the 90% score intervals do not overlap.
Workload cost
Repository review: $0.65 vs $0.03332. Cache-heavy agent loop: $0.9 vs $0.0492.
Context tradeoff
GPT-6 Astra has the larger documented window (1.05M).

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 evidence33 rows

Agentic

  • OSWorld 2.0

    GPT-6 Astra72.6%
    Source
    Inkling-Small

    Not directly comparable

  • Terminal-Bench 4.0

    GPT-6 Astra57.70%
    Source
    Inkling-Small

    Not directly comparable

  • Terminal-Bench-Science 0.1

    GPT-6 Astra64.6%
    Source
    Inkling-Small

    Not directly comparable

  • ExploitGym

    GPT-6 Astra42.4%
    Source
    Inkling-Small

    Not directly comparable

  • Agents' Last Exam

    GPT-6 Astra59.3%
    Source
    Inkling-Small

    Not directly comparable

  • Terminal-Bench 2.0

    GPT-6 Astra
    Inkling-Small64.7%
    Source

    Not directly comparable

  • BrowseComp

    GPT-6 Astra
    Inkling-Small77.4%
    Source

    Not directly comparable

  • MCP Atlas

    GPT-6 Astra
    Inkling-Small79.6%
    Source

    Not directly comparable

  • Toolathlon-Verified

    GPT-6 Astra
    Inkling-Small54.4%
    Source

    Not directly comparable

Coding

  • deepSwe

    GPT-6 Astra74.1%
    Source
    Inkling-Small

    Not directly comparable

  • SWE-bench Verified

    GPT-6 Astra
    Inkling-Small80.2%
    Source

    Not directly comparable

  • SWE-bench Pro

    GPT-6 Astra
    Inkling-Small55.9%
    Source

    Not directly comparable

  • Terminal-Bench 2.0

    GPT-6 Astra
    Inkling-Small64.7%
    Source

    Not directly comparable

  • SciCode

    GPT-6 Astra
    Inkling-Small48.7%
    Source

    Not directly comparable

Reasoning

  • ARC-AGI-2

    GPT-6 Astra95%
    Source
    Inkling-Small40.1%
    Source

    GPT-6 Astra leads this result

  • ARC-AGI-3

    GPT-6 Astra62.7%
    Source
    Inkling-Small

    Not directly comparable

  • MRCR v2 256K-512K

    GPT-6 Astra100.0%
    Source
    Inkling-Small

    Not directly comparable

  • MRCR v2 512K-1M

    GPT-6 Astra96.3%
    Source
    Inkling-Small

    Not directly comparable

  • CritPt

    GPT-6 Astra
    Inkling-Small8.3%
    Source

    Not directly comparable

Knowledge

  • GPQA

    GPT-6 Astra96%
    Source
    Inkling-Small89.5%
    Source

    GPT-6 Astra leads this result

  • GPQA-D

    GPT-6 Astra96.0%
    Source
    Inkling-Small89.5%
    Source

    GPT-6 Astra leads this result

  • HealthBench Professional

    GPT-6 Astra63.4%
    Source
    Inkling-Small

    Not directly comparable

  • HealthBench Hard

    GPT-6 Astra36.3%
    Source
    Inkling-Small

    Not directly comparable

  • HLE

    GPT-6 Astra
    Inkling-Small47.8%
    Source

    Not directly comparable

  • HLE w/o tools

    GPT-6 Astra
    Inkling-Small31.6%
    Source

    Not directly comparable

Math

  • FrontierMath v2 (Tier 4)

    GPT-6 Astra97.600%
    Source
    Inkling-Small

    Not directly comparable

  • AIME26

    GPT-6 Astra
    Inkling-Small95.5%
    Source

    Not directly comparable

  • HMMT Feb 2026

    GPT-6 Astra
    Inkling-Small90.2%
    Source

    Not directly comparable

Multimodal

  • ScreenSpot Pro

    GPT-6 Astra92.7%
    Source
    Inkling-Small

    Not directly comparable

  • MMMU-Pro

    GPT-6 Astra
    Inkling-Small74%
    Source

    Not directly comparable

  • CharXiv

    GPT-6 Astra
    Inkling-Small81.3%
    Source

    Not directly comparable

  • CharXiv w/o tools

    GPT-6 Astra
    Inkling-Small77.4%
    Source

    Not directly comparable

Instruction following

  • IFBench

    GPT-6 Astra
    Inkling-Small82.2%
    Source

    Not directly comparable

Frequently asked questions

Which is better, GPT-6 Astra or Inkling-Small?

GPT-6 Astra has the higher public score, 81.88 versus 63.47, 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-6 Astra 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-6 Astra or Inkling-Small?

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

Which costs less, GPT-6 Astra or Inkling-Small?

For the stated presets, chat costs $0.035 on GPT-6 Astra and $0.0013 on Inkling-Small; repository review costs $0.65 and $0.03332; the cache-heavy agent loop costs $0.9 and $0.0492. Costs use the listed standard API rates.

Which has the larger context window, GPT-6 Astra or Inkling-Small?

GPT-6 Astra has the larger documented context window: 1.05M, compared with 1M.

Related comparisons

Last updated September 3, 2026

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