API cost decision in 10 seconds

Relace Search vs Claude Opus 4.5

Pick Relace Search when budget and context both matter.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Relace Search when budget and context both matter.

On the standard 1M input plus 500K output workload, Relace Search is estimated at $2.5 vs $17.5 for Claude Opus 4.5, saving $15 (85.7% lower).

Cost-first pickRelace Search
Context-first pickRelace Search
Sample savings$1585.7%
10x traffic gap$150

Relace Search is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $150. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

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

Workload shapeToken mixBetter pickRelace SearchClaude Opus 4.5
Input-heavy / RAG5M input + 500K outputRelace Search$6.5$37.5
Balanced workload1M input + 1M outputRelace Search$4$30
Output-heavy chatbot1M input + 5M outputRelace Search$16$130
Cheaper input Relace Search $1 vs $5 / 1M

Relace Search is $4 cheaper per 1M input tokens (80% lower; 5x difference).

Cheaper output Relace Search $3 vs $25 / 1M

Relace Search is $22 cheaper per 1M output tokens (88% lower; 8.33x difference).

Larger context Relace Search 256K vs 200K

Relace Search has 56K more context (1.28x larger).

Sample workload Relace Search $2.5 vs $17.5

Relace Search is $15 cheaper on the standard workload (85.7% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Relace Search Calculating… Estimated API cost
Claude Opus 4.5 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

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

For a 1M input token plus 500K output token workload, the estimated API cost is $2.5 for Relace Search and $17.5 for Claude Opus 4.5.

Best Fit

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

Choose Claude Opus 4.5 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Decision Notes
  • On the standard 1M input plus 500K output workload, Relace Search is estimated at $2.5 vs $17.5 for Claude Opus 4.5, saving $15 (85.7% lower).
  • Relace Search is $15 cheaper on the standard workload (85.7% lower).
  • Relace Search is $4 cheaper per 1M input tokens (80% lower; 5x difference).
  • Relace Search is $22 cheaper per 1M output tokens (88% lower; 8.33x difference).
  • Relace Search has 56K more context (1.28x larger).
Head-to-Head Specs
FeatureRelace Search
(Relace)		Claude Opus 4.5
(Anthropic)
Input Price
prompt tokens per 1M		$1$5
Completion Price
per 1M tokens		$3$25
Sample Workload Cost
1M input + 500K output		$2.5$17.5
Context Window256K200K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionRelace SearchOn the standard 1M input plus 500K output workload, Relace Search is estimated at $2.5 vs $17.5 for Claude Opus 4.5, saving $15 (85.7% lower).
High-volume input processingRelace SearchLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsRelace SearchLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workRelace SearchA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Relace Apply 3 can replace Relace Search when lower sample workload cost matters most: $1.48.
  • Claude 3 Haiku can replace Claude Opus 4.5 when lower sample workload cost matters most: $0.88.
  • Claude 3.5 Haiku can replace Claude Opus 4.5 when lower sample workload cost matters most: $2.8.
  • Anthropic Claude Haiku Latest can replace Claude Opus 4.5 when lower sample workload cost matters most: $3.5.
Larger context near this budget
  • Llama 4 Scout offers 10M context with $0.23 sample workload cost.
  • Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
  • Grok 4.20 offers 2M context with $2.5 sample workload cost.
  • GPT-5.5 offers 1.05M context with $20 sample workload cost.

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.

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Relace catalog

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

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Anthropic catalog

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

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