Which is cheaper, Gemini 4 Argon and Inkling Small?

Inkling Small has the lowest input price. Per 1M input tokens: Gemini 4 Argon from $2.00 and Inkling Small from $0.45.

Which has the larger context window, Gemini 4 Argon and Inkling Small?

Gemini 4 Argon has the largest context window: Gemini 4 Argon 1,048,576 tokens and Inkling Small 524,288 tokens.

Which is smarter, Gemini 4 Argon and Inkling Small?

Gemini 4 Argon scores highest on the Artificial Analysis Intelligence Index: Gemini 4 Argon 50.4 and Inkling Small 12.9.

Can I switch between Gemini 4 Argon and Inkling Small without changing my code?

Yes. All of them are served through FastRouter's OpenAI-compatible API, so switching is a change of the model parameter (google/gemini-4-argon, thinkingmachines/inkling-small).

Gemini 4 Argon vs Inkling Small

Side-by-side pricing per provider, context window, benchmark scores and speed, all on one OpenAI-compatible API.

Estimate monthly cost for these models

Gemini 4 Argon Googlegoogle/gemini-4-argon

Inkling Small Thinking Machinesthinkingmachines/inkling-small

Creator

Google

Thinking Machines

Released

Oct 13, 2026

Jul 30, 2026

Context window

1.05M

524K

Max output

66K

262K

Input / 1MLowest provider price

$2.00

$0.45

Output / 1MLowest provider price

$10.00

$1.20

Providers

IntelligenceArtificial Analysis index

50.4

12.9

Accepts

Text, Image, Audio, Video, Files

Text, Image, Audio

Produces

Text

Tool calling

Yes

Structured output

Yes

Reasoning

Yes

Gemini 4 Argon vs Inkling Small: summary

Gemini 4 Argon and Inkling Small are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.

Gemini 4 Argon, from Google, has a 1,048,576-token context window, costs from $2.00/1M input and $10.00/1M output tokens across 2 providers and scores 50.4 on the Artificial Analysis Intelligence Index.

Inkling Small, from Thinking Machines, has a 524,288-token context window, costs $0.45/1M input and $1.20/1M output tokens and scores 12.9 on the Artificial Analysis Intelligence Index.

Inkling Small is the cheapest on input, 4.4× cheaper than the next model, Gemini 4 Argon has the largest context window and Gemini 4 Argon scores highest for intelligence.

Switch with one line

client = OpenAI(base_url="https://api.fastrouter.ai/api/v1", api_key="<FASTROUTER_API_KEY>") client.chat.completions.create(model="google/gemini-4-argon", messages=[...]) # or client.chat.completions.create(model="thinkingmachines/inkling-small", messages=[...])

Full API docs

Frequently asked questions

More comparisons

Benchmark scores sourced from ArtificialAnalysis