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Model A
Inkling-Small

Thinking Machines Lab

59.25/100

Supported · Public rank #69

90% interval 52.466.1

Inkling-Small vs Solar Pro 3

Updated September 10, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

Upstage logo
Model B
Solar Pro 3

Upstage

Evidence status unavailable

90% interval unavailable

Decision reading

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

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

    Inkling-Small

    Inkling-Small has the larger documented context window.

    Confidence: documented

  • Chat turn cost

    1K fresh input + 500 output tokens

    Solar Pro 3

    Solar Pro 3 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

    Solar Pro 3

    Solar Pro 3 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

    Solar Pro 3 is not ranked on the public lane for coding, so no winner is named for coding.

    Confidence: limited

  • Agentic work

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

    Not enough matched evidence

    Solar Pro 3 is not ranked on the public lane for agentic, so no winner is named for agentic.

    Confidence: limited

  • Cache-heavy agent loop cost

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

    Not enough matched evidence

    The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. Solar Pro 3 does not fit this workload in one request. Solar Pro 3 has no published cached-input rate, so cached tokens use its listed input rate.

    Confidence: rate-fallback

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
Inkling-Small only
24
Solar Pro 3 only
0
Like-for-like categories
1 / 8

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.

Instruction following

Like-for-like
Inkling-Small
89.6
#25/123
Solar Pro 3
87.1
#35/123
Basis
Provisional lane · 1 vs 1 weighted rows
Reading
Inkling-Small leads

Agentic

Not comparable
Inkling-Small
36.9
Supported · #128/152
Solar Pro 3
Not ranked
Basis
BenchAlign lane · 5 vs 0 public rows
Reading
Not comparable

Coding

Not comparable
Inkling-Small
43.8
Supported · #97/151
Solar Pro 3
Not ranked
Basis
BenchAlign lane · 6 vs 0 public rows
Reading
Not comparable

Reasoning

Not comparable
Inkling-Small
42.7
Unranked · 3 rankable rows
Solar Pro 3
43.2
Unranked · 2 rankable rows
Basis
Provisional lane · 1 vs 0 weighted rows
Reading
Not comparable

Knowledge

Not comparable
Inkling-Small
56.5
Supported · #46/183
Solar Pro 3
Not ranked
Basis
BenchAlign lane · 6 vs 0 public rows
Reading
Not comparable

Math

Not comparable
Inkling-Small
76.9
Unranked · 2 rankable rows
Solar Pro 3
Not ranked
Basis
Provisional lane · 2 vs 0 weighted rows
Reading
Not comparable

Multilingual

Not comparable
Inkling-Small
Not ranked
Solar Pro 3
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Inkling-Small
48.8
#39/48
Solar Pro 3
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

Inkling-Small
$0.0013
Fits in one request
Solar Pro 3
$0.00045
Fits in one request

Solar Pro 3 has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

Inkling-Small
$0.03332
Fits in one request
Solar Pro 3
$0.0093
Fits in one request

Solar Pro 3 has the lower modeled cost

Costs use the listed standard API rates.

Cache-heavy agent loop

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

Inkling-Small
$0.0492
Fits in one request
Solar Pro 3
$0.039
Does not fit in one request
Cached input priced at the published list-input rate

Solar Pro 3 does not fit this workload in one request. Solar Pro 3 has no published cached-input rate, so cached tokens use its listed input 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.

Inkling-Small

1M

Solar Pro 3

Cached-input rate

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

Inkling-Small

$0.116 per 1M cached input tokens

Solar Pro 3

Not published

Upstage API pricing

Documented inputs

Inkling-Small

Not sourced

Solar Pro 3

Not sourced

Documented outputs

Inkling-Small

Not sourced

Solar Pro 3

Not sourced

Provider availability

Inkling-Small

Not sourced

Solar Pro 3

Not sourced

Reasoning profile

Inkling-Small

Hybrid

Solar Pro 3

Reasoning

Weight access

Inkling-Small

Open Weight

Solar Pro 3

Proprietary

License

Inkling-Small

Open Weight

Solar Pro 3

Proprietary

Release date

Inkling-Small

2026-07-30

Solar Pro 3

2026-01-26

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: $0.03332 vs $0.0093. Cache-heavy agent loop: $0.0492 vs $0.039.
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 evidence25 rows

Agentic

  • Terminal-Bench 2.0

    Inkling-Small64.7%
    Source
    Solar Pro 3

    Not directly comparable

  • BrowseComp

    Inkling-Small77.4%
    Source
    Solar Pro 3

    Not directly comparable

  • MCP Atlas

    Inkling-Small79.6%
    Source
    Solar Pro 3

    Not directly comparable

  • Toolathlon-Verified

    Inkling-Small54.4%
    Source
    Solar Pro 3

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    Inkling-Small55.1%
    Source
    Solar Pro 3

    Not directly comparable

Coding

  • SWE-bench Verified

    Inkling-Small80.2%
    Source
    Solar Pro 3

    Not directly comparable

  • SWE-bench Pro

    Inkling-Small55.9%
    Source
    Solar Pro 3

    Not directly comparable

  • Terminal-Bench 2.0

    Inkling-Small64.7%
    Source
    Solar Pro 3

    Not directly comparable

  • SciCode

    Inkling-Small48.7%
    Source
    Solar Pro 3

    Not directly comparable

  • LiveCodeBench (Vals)

    Inkling-Small85.9%
    Source
    Solar Pro 3

    Not directly comparable

  • SWE-bench (Vals)

    Inkling-Small82.2%
    Source
    Solar Pro 3

    Not directly comparable

Reasoning

  • ARC-AGI-2

    Inkling-Small40.1%
    Source
    Solar Pro 3

    Not directly comparable

  • CritPt

    Inkling-Small8.3%
    Source
    Solar Pro 3

    Not directly comparable

Knowledge

  • GPQA

    Inkling-Small89.5%
    Source
    Solar Pro 3

    Not directly comparable

  • GPQA-D

    Inkling-Small89.5%
    Source
    Solar Pro 3

    Not directly comparable

  • HLE

    Inkling-Small47.8%
    Source
    Solar Pro 3

    Not directly comparable

  • HLE w/o tools

    Inkling-Small31.6%
    Source
    Solar Pro 3

    Not directly comparable

  • GPQA Diamond (Vals)

    Inkling-Small83.6%
    Source
    Solar Pro 3

    Not directly comparable

  • MMLU-Pro (Vals)

    Inkling-Small85.6%
    Source
    Solar Pro 3

    Not directly comparable

Math

  • AIME26

    Inkling-Small95.5%
    Source
    Solar Pro 3

    Not directly comparable

  • HMMT Feb 2026

    Inkling-Small90.2%
    Source
    Solar Pro 3

    Not directly comparable

Multimodal

  • MMMU-Pro

    Inkling-Small74%
    Source
    Solar Pro 3

    Not directly comparable

  • CharXiv

    Inkling-Small81.3%
    Source
    Solar Pro 3

    Not directly comparable

  • CharXiv w/o tools

    Inkling-Small77.4%
    Source
    Solar Pro 3

    Not directly comparable

Instruction following

  • IFBench

    Inkling-Small82.2%
    Source
    Solar Pro 355.8%
    Source

    Inkling-Small leads this result

Frequently asked questions

Which is better, Inkling-Small or Solar Pro 3?

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, Inkling-Small or Solar Pro 3?

Solar Pro 3 is not ranked on the public lane for coding, so no winner is named for coding.

Which is better for agentic tasks, Inkling-Small or Solar Pro 3?

Solar Pro 3 is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.

Which costs less, Inkling-Small or Solar Pro 3?

For the stated presets, chat costs $0.0013 on Inkling-Small and $0.00045 on Solar Pro 3; repository review costs $0.03332 and $0.0093; the cache-heavy agent loop costs $0.0492 and $0.039. Solar Pro 3 does not fit this workload in one request. Solar Pro 3 has no published cached-input rate, so cached tokens use its listed input rate.

Which has the larger context window, Inkling-Small or Solar Pro 3?

Inkling-Small has the larger documented context window: 1M, compared with 128K.

Related comparisons

Last updated September 10, 2026

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