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 WandAPI default channel price. Input costs 0.6 Credits / M for Claude Haiku 4.5 and 0.21 Credits / M for Claude Haiku 5.5, so Claude Haiku 5.5 is 65% cheaper.

Claude Haiku 4.5claude-haiku-4-5-20251001
Anthropic
Input (prompt)
0.6Credits / M
≈ $0.0917
Output (completion)
3Credits / M
≈ $0.458
200K context · 64K output91% off
Claude Haiku 4.5 details
Input (prompt)
0.21Credits / M
≈ $0.0321
Output (completion)
1.05Credits / M
≈ $0.16
— context · — output68% off
Claude Haiku 5.5 details
Lower input price
Claude Haiku 5.5
65% cheaper
More exclusive capabilities
Claude Haiku 4.5
Reasoning

Specs side by side

Item
Claude Haiku 4.5claude-haiku-4-5-20251001
Claude Haiku 5.5claude-haiku-5-5
Input (prompt) · Credits / M0.6≈ $0.09170.21≈ $0.0321
Output (completion) · Credits / M3≈ $0.4581.05≈ $0.16
Cache read · Credits / M0.060.021
Context window200K—
Max output64K—
7-day uptime——
Latest probe latency——
Measured throughput——
ProtocolsAnthropic MessagesAnthropic Messages
Sample monthly cost (10M in + 2M out)12≈ $1.834.2≈ $0.642

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

Capabilities

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

FAQ

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

At the WandAPI default channel price, Claude Haiku 4.5 input costs 0.6 Credits / M and Claude Haiku 5.5 input costs 0.21 Credits / M, so Claude Haiku 5.5 is 65% 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. WandAPI 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: Reasoning. Only Claude Haiku 5.5: Response Schema. Every other capability is either supported by both or by neither; see the capability table above.

More comparisons

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

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