API cost decision in 10 seconds

NewCoBuddy (free) vs NewClaude Opus 4.7 (Fast)

Pick CoBuddy (free) 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: 2026-05-26T20:08:05Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick CoBuddy (free) 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, CoBuddy (free) is estimated at $0 vs $105 for Claude Opus 4.7 (Fast), saving $105 (100% lower).

Cost-first pickCoBuddy (free)

Context-first pickClaude Opus 4.7 (Fast)

Sample savings$105100%

10x traffic gap$1050

Claude Opus 4.7 (Fast) has more context, but CoBuddy (free) saves $105 on the standard workload. At 10x that traffic, the same price gap is about $1050. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

CoBuddy (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	CoBuddy (free)	Claude Opus 4.7 (Fast)
Input-heavy / RAG	5M input + 500K output	CoBuddy (free)	$0	$225
Balanced workload	1M input + 1M output	CoBuddy (free)	$0	$180
Output-heavy chatbot	1M input + 5M output	CoBuddy (free)	$0	$780

Cheaper input CoBuddy (free) $0 vs $30 / 1M

CoBuddy (free) is free for input tokens while Claude Opus 4.7 (Fast) costs $30 per 1M tokens.

Cheaper output CoBuddy (free) $0 vs $150 / 1M

CoBuddy (free) is free for output tokens while Claude Opus 4.7 (Fast) costs $150 per 1M tokens.

Larger context Claude Opus 4.7 (Fast) 131.07K vs 1M

Claude Opus 4.7 (Fast) has 868.93K more context (7.63x larger).

Sample workload CoBuddy (free) $0 vs $105

CoBuddy (free) is free for the standard workload while the other model is estimated at $105.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

CoBuddy (free) 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

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

For a 1M input token plus 500K output token workload, the estimated API cost is $0 for CoBuddy (free) and $105 for Claude Opus 4.7 (Fast).

Best Fit

Choose CoBuddy (free) 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, CoBuddy (free) is estimated at $0 vs $105 for Claude Opus 4.7 (Fast), saving $105 (100% lower).
CoBuddy (free) is free for the standard workload while the other model is estimated at $105.
CoBuddy (free) is free for input tokens while Claude Opus 4.7 (Fast) costs $30 per 1M tokens.
CoBuddy (free) is free for output tokens while Claude Opus 4.7 (Fast) costs $150 per 1M tokens.
Claude Opus 4.7 (Fast) has 868.93K more context (7.63x larger).

Head-to-Head Specs

Feature	NewCoBuddy (free) (Baidu Qianfan)	NewClaude Opus 4.7 (Fast) (Anthropic)
Input Price prompt tokens per 1M	$0	$30
Completion Price per 1M tokens	$0	$150
Sample Workload Cost 1M input + 500K output	$0	$105
Context Window	131.07K	1M
Release Date	2026-05-06	2026-05-12
Popularity	#83	#112

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	CoBuddy (free)	On the standard 1M input plus 500K output workload, CoBuddy (free) is estimated at $0 vs $105 for Claude Opus 4.7 (Fast), saving $105 (100% lower).
High-volume input processing	CoBuddy (free)	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	CoBuddy (free)	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

DeepSeek V4 Flash · DeepSeek · #1
Hy3 preview · Tencent · #2
Claude Opus 4.7 · Anthropic · #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.

Open provider hubs

Baidu Qianfan catalog

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

Open Baidu Qianfan models

Anthropic catalog

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

Open Anthropic models

CoBuddy (free)

CoBuddy is a code generation model from Baidu, optimized for coding tasks and AI Agent workflows. It features high inference throughput and low end-to-end latency, with native support for tool...

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