API cost decision in 10 seconds

Llama 3 8B Lunaris vs NewClaude Opus 4.7 (Fast)

Pick Llama 3 8B Lunaris for lower cost; pick Claude Opus 4.7 (Fast) only if the larger context window matters more.

Page updated: 2026-05-26T15:08:08Z Data confirmed: 2026-05-30T18:07:59Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Llama 3 8B Lunaris for lower cost; pick Claude Opus 4.7 (Fast) only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Llama 3 8B Lunaris is estimated at $0.07 vs $105 for Claude Opus 4.7 (Fast), saving $104.94 (99.9% lower).

Cost-first pickLlama 3 8B Lunaris

Context-first pickClaude Opus 4.7 (Fast)

Sample savings$104.9499.9%

10x traffic gap$1049.35

Claude Opus 4.7 (Fast) has more context, but Llama 3 8B Lunaris saves $104.94 on the standard workload. At 10x that traffic, the same price gap is about $1049.35. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Llama 3 8B Lunaris stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Llama 3 8B Lunaris	Claude Opus 4.7 (Fast)
Input-heavy / RAG	5M input + 500K output	Llama 3 8B Lunaris	$0.23	$225
Balanced workload	1M input + 1M output	Llama 3 8B Lunaris	$0.09	$180
Output-heavy chatbot	1M input + 5M output	Llama 3 8B Lunaris	$0.29	$780

Cheaper input Llama 3 8B Lunaris $0.04 vs $30 / 1M

Llama 3 8B Lunaris is $29.96 cheaper per 1M input tokens (99.9% lower; 750x difference).

Cheaper output Llama 3 8B Lunaris $0.05 vs $150 / 1M

Llama 3 8B Lunaris is $149.95 cheaper per 1M output tokens (100% lower; 3000x difference).

Larger context Claude Opus 4.7 (Fast) 8.19K vs 1M

Claude Opus 4.7 (Fast) has 991.81K more context (122.1x larger).

Sample workload Llama 3 8B Lunaris $0.07 vs $105

Llama 3 8B Lunaris is $104.94 cheaper on the standard workload (99.9% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Llama 3 8B Lunaris Calculating… Estimated API cost

Claude Opus 4.7 (Fast) 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

Llama 3 8B Lunaris has the lower input price; Llama 3 8B Lunaris has the lower output price; Claude Opus 4.7 (Fast) offers the larger context window. For the 1M input plus 500K output sample, Llama 3 8B Lunaris is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.07 for Llama 3 8B Lunaris and $105 for Claude Opus 4.7 (Fast).

Best Fit

Choose Llama 3 8B Lunaris when you care most about lower input-token price, and lower output-token price.

Choose Claude Opus 4.7 (Fast) when you care most about larger context window.

Decision Notes

On the standard 1M input plus 500K output workload, Llama 3 8B Lunaris is estimated at $0.07 vs $105 for Claude Opus 4.7 (Fast), saving $104.94 (99.9% lower).
Llama 3 8B Lunaris is $104.94 cheaper on the standard workload (99.9% lower).
Llama 3 8B Lunaris is $29.96 cheaper per 1M input tokens (99.9% lower; 750x difference).
Llama 3 8B Lunaris is $149.95 cheaper per 1M output tokens (100% lower; 3000x difference).
Claude Opus 4.7 (Fast) has 991.81K more context (122.1x larger).

Head-to-Head Specs

Feature	Llama 3 8B Lunaris (Sao10K)	NewClaude Opus 4.7 (Fast) (Anthropic)
Input Price prompt tokens per 1M	$0.04	$30
Completion Price per 1M tokens	$0.05	$150
Sample Workload Cost 1M input + 500K output	$0.07	$105
Context Window	8.19K	1M
Release Date	2024-08-13	2026-05-12
Popularity	#111	#125

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Llama 3 8B Lunaris	On the standard 1M input plus 500K output workload, Llama 3 8B Lunaris is estimated at $0.07 vs $105 for Claude Opus 4.7 (Fast), saving $104.94 (99.9% lower).
High-volume input processing	Llama 3 8B Lunaris	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Llama 3 8B Lunaris	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Claude Opus 4.7 (Fast)	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Claude 3 Haiku can replace Claude Opus 4.7 (Fast) when lower sample workload cost matters most: $0.88.
Claude 3.5 Haiku can replace Claude Opus 4.7 (Fast) when lower sample workload cost matters most: $2.8.
Anthropic Claude Haiku Latest can replace Claude Opus 4.7 (Fast) when lower sample workload cost matters most: $3.5.
Claude Haiku 4.5 can replace Claude Opus 4.7 (Fast) 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 offers 2M context with $2.5 sample workload cost.
Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
GPT-5.5 offers 1.05M context with $20 sample workload cost.

Popular competitors

Hy3 preview · Tencent · #1
DeepSeek V4 Flash · DeepSeek · #2
MiMo-V2.5 · Xiaomi · #3
Claude Sonnet 4.6 · Anthropic · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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

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Sao10K catalog

Review all tracked Sao10K 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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Llama 3 8B Lunaris

Lunaris 8B is a versatile generalist and roleplaying model based on Llama 3. It's a strategic merge of multiple models, designed to balance creativity with improved logic and general knowledge....

Claude Opus 4.7 (Fast)

Fast-mode variant of [Opus 4.7](/anthropic/claude-opus-4.7) - identical capabilities with higher output speed at premium 6x pricing. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode