Which is cheaper, Claude Haiku 5.5 and Qwen3.8 27B?

Claude Haiku 5.5 has the lowest input price. Per 1M input tokens: Claude Haiku 5.5 from $0.10 and Qwen3.8 27B from $0.40.

Which has the larger context window, Claude Haiku 5.5 and Qwen3.8 27B?

Claude Haiku 5.5 has the largest context window: Claude Haiku 5.5 1,000,000 tokens and Qwen3.8 27B 262,144 tokens.

Can I switch between Claude Haiku 5.5 and Qwen3.8 27B 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, qwen/qwen3.8-27b).

Claude Haiku 5.5 vs Qwen3.8 27B

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

Qwen3.8 27B Alibabaqwen/qwen3.8-27b

Creator

Anthropic

Alibaba

Released

Oct 7, 2026

Aug 14, 2025

Context window

262K

Max output

128K

33K

Input / 1MLowest provider price

$0.10

$0.40

Output / 1MLowest provider price

$0.50

$3.00

Providers

IntelligenceArtificial Analysis index

34.3

20.1

Accepts

Image, Text

Text, Image, Video

Produces

Text

Tool calling

Yes

Structured output

Yes

Reasoning

Yes

Claude Haiku 5.5 vs Qwen3.8 27B: summary

Claude Haiku 5.5 and Qwen3.8 27B 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.

Qwen3.8 27B, from Alibaba, has a 262,144-token context window, costs $0.40/1M input and $3.00/1M output tokens and scores 20.1 on the Artificial Analysis Intelligence Index.

Claude Haiku 5.5 is the cheapest on input, 4× cheaper than the next model, Claude Haiku 5.5 has the largest context window and Claude Haiku 5.5 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="qwen/qwen3.8-27b", messages=[...])

Full API docs

Frequently asked questions

More comparisons

Benchmark scores sourced from ArtificialAnalysis