Inkling-Small

by Thinking Machines

Released 15 days after Inkling · All Thinking Machines releases

Inkling-Small is the smaller sibling of Inkling, previewed alongside the flagship in July 2026 and released with full weights on July 30, 2026 under Apache 2.0. It keeps the Inkling recipe in a 42-layer body with 276 billion total and 12 billion active parameters, each token drawing on 6 of 256 routed experts together with 2 shared ones, and it takes text, image, and audio input and produces text. Thinking Machines reports that the smaller model lands close to, and on several coding benchmarks above, the 975B Inkling: 80.2% on SWE-bench Verified against 77.6% for the larger model, 89.5% on GPQA Diamond, 95.5% on AIME 2026, 90.2% on HMMT February 2026, 74.0% on MMMU Pro, and 47.8% on Humanity's Last Exam with tools. The lab aims it at agent and tool-use systems, coding assistants, chat, and retrieval-augmented generation. Weights are available in BF16 and NVFP4, and the model can be fine-tuned on the Tinker platform, so it suits teams that want the Inkling recipe at a per-token compute budget closer to a mid-sized dense model.

Call Inkling-Small on Opper with the OpenAI SDK. Sign up without a credit card. Get started

Key info

Input
Output
Features
Context window
524K
Max output
524K
Input price
$0.45 /1M$0.10 cache read
Output price
$1.20 /1M
Released
  • US residency available
  • Zero data retention on pay-as-you-go
  • No training by default
  • GDPR DPA available

Available routes

Inkling-Small runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutputCache read
USNo$0.45$1.20$0.10

Uptime and availability

Inkling-Small runs on a single route through the Opper gateway today, so its availability is that provider's availability.

100%route uptime, last 30 days
Single route, no failover target within this model.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting Inkling-Small has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

DeepInfra — United States🇺🇸

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; unknown; DPA available.

Zero data retention
Yes. Nothing is logged, held for abuse monitoring or used for training.
Training
No training on customer data.
Logging
None
Abuse monitoring
No classifier
GDPR DPA
DPA available
Transfer mechanism
unknown

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#145 of 677 LLMs
TierEfficient
Output speed200 tok/s
First token1.87s
Intelligence Index25.7
Coding Index52.9
Reasoning & knowledge
GPQA Diamond
90%
Humanity's Last Exam
33%
Long-context reasoning
76%
Coding
SciCode
50%

Get started

Call Inkling-Small through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

Inkling-Small is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "deepinfra/thinkingmachines/Inkling-Small",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Use Inkling-Small in your apps

Pick your tool to see how to run it on Inkling-Small through Opper.

Compare Inkling-Small with…

Side-by-side on privacy, EU hosting, pricing, and benchmarks.

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