DeepSeek-V4.1-Flash vs Inkling-Small: Specs & Benchmark Comparison

DeepSeek-V4.1-Flash is developed by DeepSeek, while Inkling-Small comes from Thinking Machines Lab. Inkling-Small was released in July 2026, and DeepSeek-V4.1-Flash followed 2 months later in September 2026. DeepSeek-V4.1-Flash is the larger model at roughly 552 billion parameters, against 276 billion for Inkling-Small.

The two models share 2 published benchmarks. DeepSeek-V4.1-Flash leads on 2 of them. The widest gaps are on Terminal-Bench 2.1, where DeepSeek-V4.1-Flash scores 90.6% against 64.7%; GPQA Diamond, where DeepSeek-V4.1-Flash scores 90.9% against 89.5%. Averaged across everything we track, DeepSeek-V4.1-Flash sits at 60.9% and Inkling-Small at 60.3%.

On price the two are close: DeepSeek-V4.1-Flash costs $0.30 per million input tokens and $1.20 per million output tokens, Inkling-Small $0.30 and $1.20. DeepSeek-V4.1-Flash takes the larger context window at 1M tokens, compared with 256K for Inkling-Small. DeepSeek-V4.1-Flash accepts text and images as input, while Inkling-Small accepts text, images, and audio. On tooling, only DeepSeek-V4.1-Flash supports function calling and only DeepSeek-V4.1-Flash offers structured output.

CharacteristicDeepSeek-V4.1-FlashInkling-Small
CompanyDeepSeekThinking Machines Lab
Release DateSeptember 10, 2026July 30, 2026
Parameters552B276B
MultimodalYesYes
Context (input)1.0M256K
Context (output)393K256K
Input Price / 1M$0.30$0.30
Output Price / 1M$1.20$1.20
Average Score60.9%60.3%
Benchmarks
Terminal-Bench 2.190.6%64.7%
GPQA Diamond90.9%89.5%

Visual Benchmark Comparison

DeepSeek-V4.1-Flash
Inkling-Small
Terminal-Bench 2.10.9 vs 0.6
0.9
0.6
GPQA Diamond0.9 vs 0.9
0.9
0.9

Verdict

DeepSeek-V4.1-Flash leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: DeepSeek-V4.1-Flash — 0.6, Inkling-Small — 0.6.

API Cost

API cost is identical: input $0.30/1M, output $1.20/1M tokens.

Context Window

DeepSeek-V4.1-Flash supports a larger context: 1M vs 256K tokens.

Recency

DeepSeek-V4.1-Flash is newer: released 9/10/2026 vs 7/30/2026.

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Frequently Asked Questions

Which is better for coding — DeepSeek-V4.1-Flash or Inkling-Small?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — DeepSeek-V4.1-Flash or Inkling-Small?
DeepSeek-V4.1-Flash is cheaper for input: $0.30 per 1M tokens vs $0.30.
Which has a larger context window — DeepSeek-V4.1-Flash or Inkling-Small?
DeepSeek-V4.1-Flash supports a larger context: 1,048,576 tokens vs 256,000.

The DeepSeek-V4.1-Flash and Inkling-Small comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the DeepSeek-V4.1-Flash or Inkling-Small page. See also the complete list of AI model comparisons.