API cost decision in 10 seconds

🔥Claude Opus 5.5 vs NewHy4

Pick Hy4 when budget and context both matter.

Page updated: 2026-11-04T05:07:27Z Data confirmed: 2026-11-04T07:07:30Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Hy4 when budget and context both matter.

On the standard 1M input plus 500K output workload, Hy4 is estimated at $1.04 vs $14 for Claude Opus 5.5, saving $12.96 (92.6% lower).

Cost-first pickHy4

Context-first pickHy4

Sample savings$12.9692.6%

10x traffic gap$129.58

Hy4 is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $129.58. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Hy4 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Claude Opus 5.5	Hy4
Input-heavy / RAG	5M input + 500K output	Hy4	$30	$2.71
Balanced workload	1M input + 1M output	Hy4	$24	$1.67
Output-heavy chatbot	1M input + 5M output	Hy4	$104	$6.67

Cheaper input Hy4 $4 vs $0.417 / 1M

Hy4 is $3.58 cheaper per 1M input tokens (89.6% lower; 9.59x difference).

Cheaper output Hy4 $20 vs $1.2505 / 1M

Hy4 is $18.75 cheaper per 1M output tokens (93.7% lower; 16x difference).

Larger context Hy4 1M vs 1.05M

Hy4 has 48.58K more context (1.05x larger).

Sample workload Hy4 $14 vs $1.04

Hy4 is $12.96 cheaper on the standard workload (92.6% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Claude Opus 5.5 Calculating… Estimated API cost

Hy4 Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Hy4 has the lower input price; Hy4 has the lower output price; Hy4 offers the larger context window. For the 1M input plus 500K output sample, Hy4 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $14 for Claude Opus 5.5 and $1.04 for Hy4.

Best Fit

Choose Claude Opus 5.5 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Choose Hy4 when you care most about lower input-token price, lower output-token price, and larger context window.

Decision Notes

On the standard 1M input plus 500K output workload, Hy4 is estimated at $1.04 vs $14 for Claude Opus 5.5, saving $12.96 (92.6% lower).
Hy4 is $12.96 cheaper on the standard workload (92.6% lower).
Hy4 is $3.58 cheaper per 1M input tokens (89.6% lower; 9.59x difference).
Hy4 is $18.75 cheaper per 1M output tokens (93.7% lower; 16x difference).
Hy4 has 48.58K more context (1.05x larger).

Head-to-Head Specs

Feature	🔥Claude Opus 5.5 (Anthropic)	NewHy4 (Tencent)
Input Price prompt tokens per 1M	$4	$0.417
Completion Price per 1M tokens	$20	$1.2505
Sample Workload Cost 1M input + 500K output	$14	$1.04
Context Window	1M	1.05M
Release Date	2026-09-22	2026-11-04
Popularity	#8

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Hy4	On the standard 1M input plus 500K output workload, Hy4 is estimated at $1.04 vs $14 for Claude Opus 5.5, saving $12.96 (92.6% lower).
High-volume input processing	Hy4	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Hy4	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Hy4	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Claude Haiku 5.5 (batch) can replace Claude Opus 5.5 when lower sample workload cost matters most: $0.17.
Claude Haiku 5.5 can replace Claude Opus 5.5 when lower sample workload cost matters most: $0.35.
Claude Haiku Latest can replace Claude Opus 5.5 when lower sample workload cost matters most: $0.35.
Claude 3 Haiku can replace Claude Opus 5.5 when lower sample workload cost matters most: $0.88.

Larger context near this budget

Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
Llama 4 Scout offers 1.31M context with $0.25 sample workload cost.
GPT-6 Luna offers 1.05M context with $0.35 sample workload cost.

Popular competitors

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Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

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Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

Anthropic catalog

Review all tracked Anthropic models before deciding whether this matchup is the right shortlist.

Open Anthropic models

Tencent catalog

Check other Tencent models with comparable pricing, context, or release timing.

Open Tencent models

Claude Opus 5.5

Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...

Hy4

The official release of Hy4 delivers comprehensive and substantial improvements over Hy4 Preview, with particularly strong gains in agentic capabilities and performance across a wide range of long-horizon, real-world productivity...