GPT-5.2 Pro vs Inkling 2 Small
GPT-5.2 Pro and Inkling 2 Small are closely matched at 42.4 and 47.2 on the LLM Stats Score. Inkling 2 Small is 121.6x cheaper per token.
OpenAI · Thinking Machines Lab · Updated for 2026
Which is better?
GPT-5.2 Pro and Inkling 2 Small are closely matched on the overall LLM Stats Score at 42.4 and 47.2.
In the 3 individual benchmarks reported for both models, Inkling 2 Small wins 2; this is a narrower head-to-head signal than the composite indexes.
On price, Inkling 2 Small is roughly 121.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-5.2 Pro also accepts a larger context window (400,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-5.2 Pro
- you process long inputs — it offers a 400,000 token context window
Choose Inkling 2 Small
- you value its reported benchmark strengths — it wins 2 of 3 exact shared results
- cost matters — it's about 121.6x cheaper per token
- you want the most recent training data — it shipped Nov 2026
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
7 reported for GPT-5.2 Pro · 11 for Inkling 2 Small
GPT-5.2 Pro outperforms in 1 benchmarks (GPQA), while Inkling 2 Small is better at 2 benchmarks (BrowseComp, Humanity's Last Exam).
Inkling 2 Small shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-5.2 Pro ($21.00/1M tokens) is 70.0x more expensive than Inkling 2 Small ($0.30/1M tokens).
For output processing, GPT-5.2 Pro ($168.00/1M tokens) is 168.0x more expensive than Inkling 2 Small ($1.00/1M tokens).
In conclusion, GPT-5.2 Pro is more expensive than Inkling 2 Small.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-5.2 Pro accepts 400,000 input tokens compared to Inkling 2 Small's 256,000 tokens. Only GPT-5.2 Pro specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-5.2 Pro and Inkling 2 Small support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.2 Pro
Inkling 2 Small
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
GPT-5.2 Pro was released on 2025-12-11, while Inkling 2 Small was released on 2026-11-05.
Inkling 2 Small is 11 months newer than GPT-5.2 Pro.
Dec 11, 2025
11 months ago
Nov 5, 2026
3 days ago
10mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
GPT-5.2 Pro is available from OpenAI. Inkling 2 Small is available from Thinking Machines Lab.
GPT-5.2 Pro
Inkling 2 Small
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.2 Pro and Inkling 2 Small side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.2 Pro vs Inkling 2 Small.