Which is cheaper, Claude Haiku 5.5 and Gemini 4 Argon?

Claude Haiku 5.5 has the lowest input price. Per 1M input tokens: Claude Haiku 5.5 from $0.10 and Gemini 4 Argon from $2.00.

Which has the larger context window, Claude Haiku 5.5 and Gemini 4 Argon?

Gemini 4 Argon has the largest context window: Claude Haiku 5.5 1,000,000 tokens and Gemini 4 Argon 1,048,576 tokens.

Can I switch between Claude Haiku 5.5 and Gemini 4 Argon 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 (anthropic/claude-haiku-5.5, google/gemini-4-argon).

Claude Haiku 5.5 vs Gemini 4 Argon

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

Estimate monthly cost for these models

Claude Haiku 5.5 Anthropicanthropic/claude-haiku-5.5

Gemini 4 Argon Googlegoogle/gemini-4-argon

Creator

Anthropic

Google

Released

Oct 7, 2026

Oct 13, 2026

Context window

1.05M

Max output

128K

66K

Input / 1MLowest provider price

$0.10

$2.00

Output / 1MLowest provider price

$0.50

$10.00

Providers

IntelligenceArtificial Analysis index

34.3

50.4

Accepts

Image, Text

Text, Image, Audio, Video, Files

Produces

Text

Tool calling

Yes

Structured output

Yes

Reasoning

Yes

Claude Haiku 5.5 vs Gemini 4 Argon: summary

Claude Haiku 5.5 and Gemini 4 Argon are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.

Claude Haiku 5.5, from Anthropic, has a 1,000,000-token context window, costs from $0.10/1M input and $0.50/1M output tokens across 3 providers and scores 34.3 on the Artificial Analysis Intelligence Index.

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.

Claude Haiku 5.5 is the cheapest on input, 20× 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="anthropic/claude-haiku-5.5", messages=[...]) # or client.chat.completions.create(model="google/gemini-4-argon", messages=[...])

Full API docs

Frequently asked questions

More comparisons

Benchmark scores sourced from ArtificialAnalysis