Claude Haiku 4.5 vs Claude Haiku 5.5

Claude Haiku 4.5 (Anthropic) versus Claude Haiku 5.5 (Anthropic): API pricing, context window, capabilities and uptime, from the same data as each model page, at the SoleAPI default channel price. Input costs 0.65 Credits / M for Claude Haiku 4.5 and 0.15 Credits / M for Claude Haiku 5.5, so Claude Haiku 5.5 is 77% cheaper.

Claude Haiku 4.5claude-haiku-4-5-20251001
Anthropic
Input (prompt)
0.65Credits / M
≈ $0.0982
Output (completion)
3.25Credits / M
≈ $0.491
200K context · 64K output90% off
Claude Haiku 4.5 details
Claude Haiku 5.5claude-haiku-5-5
Anthropic
Input (prompt)
0.15Credits / M
≈ $0.0227
Output (completion)
0.75Credits / M
≈ $0.113
— context · — output77% off
Claude Haiku 5.5 details
Lower input price
Claude Haiku 5.5
77% cheaper
More exclusive capabilities
Claude Haiku 4.5
Vision, Web Search

Specs side by side

Item
Claude Haiku 4.5claude-haiku-4-5-20251001
Claude Haiku 5.5claude-haiku-5-5
Input (prompt) · Credits / M0.65≈ $0.09820.15≈ $0.0227
Output (completion) · Credits / M3.25≈ $0.4910.75≈ $0.113
Cache read · Credits / M0.0650.015
Context window200K—
Max output64K—
7-day uptime——
Latest probe latency——
Measured throughput194.3 t/s29.5 t/s
ProtocolsAnthropic Messages / Gemini generateContent / OpenAI ResponsesAnthropic Messages
Sample monthly cost (10M in + 2M out)13≈ $1.963≈ $0.453

Prices are the SoleAPI default channel price in Credits (1 Credit = ¥1); green marks the better side. Uptime and latency come from SoleAPI probes; a dash means the model is not probed yet.

Capabilities

CapabilityClaude Haiku 4.5Claude Haiku 5.5
Function Calling
Reasoning
Prompt Caching
Response Schema
Streaming
Vision
Web Search
Audio
Video
File Input
Realtime
Session
Media
Multipart Form
Binary Response

FAQ

Which is cheaper, Claude Haiku 4.5 or Claude Haiku 5.5?

At the SoleAPI default channel price, Claude Haiku 4.5 input costs 0.65 Credits / M and Claude Haiku 5.5 input costs 0.15 Credits / M, so Claude Haiku 5.5 is 77% cheaper. Output and cache prices are in the specs table above.

Can I switch between Claude Haiku 4.5 and Claude Haiku 5.5 at any time?

Yes. SoleAPI calls every model with the same API key; switching is just changing the model field in the request, and billing is split per model in one console.

How do the capabilities of Claude Haiku 4.5 and Claude Haiku 5.5 differ?

Only Claude Haiku 4.5: Vision, Web Search. Every other capability is either supported by both or by neither; see the capability table above.

More comparisons

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One API key for both Claude Haiku 4.5 and Claude Haiku 5.5

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