API cost decision in 10 seconds

NewClaude Opus 4.7 (Fast) vs NewGPT Chat Latest

Pick GPT Chat Latest for lower cost; pick Claude Opus 4.7 (Fast) only if the larger context window matters more.

Page updated: 2026-05-26T10:03:26Z Data confirmed: 2026-05-26T12:43:06Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick GPT Chat Latest 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, GPT Chat Latest is estimated at $20 vs $105 for Claude Opus 4.7 (Fast), saving $85 (81% lower).

Cost-first pickGPT Chat Latest

Context-first pickClaude Opus 4.7 (Fast)

Sample savings$8581%

10x traffic gap$850

Claude Opus 4.7 (Fast) has more context, but GPT Chat Latest saves $85 on the standard workload. At 10x that traffic, the same price gap is about $850. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

GPT Chat Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Claude Opus 4.7 (Fast)	GPT Chat Latest
Input-heavy / RAG	5M input + 500K output	GPT Chat Latest	$225	$40
Balanced workload	1M input + 1M output	GPT Chat Latest	$180	$35
Output-heavy chatbot	1M input + 5M output	GPT Chat Latest	$780	$155

Cheaper input GPT Chat Latest $30 vs $5 / 1M

GPT Chat Latest is $25 cheaper per 1M input tokens (83.3% lower; 6x difference).

Cheaper output GPT Chat Latest $150 vs $30 / 1M

GPT Chat Latest is $120 cheaper per 1M output tokens (80% lower; 5x difference).

Larger context Claude Opus 4.7 (Fast) 1M vs 400K

Claude Opus 4.7 (Fast) has 600K more context (2.5x larger).

Sample workload GPT Chat Latest $105 vs $20

GPT Chat Latest is $85 cheaper on the standard workload (81% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Claude Opus 4.7 (Fast) Calculating… Estimated API cost

GPT Chat Latest 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

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

For a 1M input token plus 500K output token workload, the estimated API cost is $105 for Claude Opus 4.7 (Fast) and $20 for GPT Chat Latest.

Best Fit

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

Choose GPT Chat Latest when you care most about lower input-token price, and lower output-token price.

Decision Notes

On the standard 1M input plus 500K output workload, GPT Chat Latest is estimated at $20 vs $105 for Claude Opus 4.7 (Fast), saving $85 (81% lower).
GPT Chat Latest is $85 cheaper on the standard workload (81% lower).
GPT Chat Latest is $25 cheaper per 1M input tokens (83.3% lower; 6x difference).
GPT Chat Latest is $120 cheaper per 1M output tokens (80% lower; 5x difference).
Claude Opus 4.7 (Fast) has 600K more context (2.5x larger).

Head-to-Head Specs

Feature	NewClaude Opus 4.7 (Fast) (Anthropic)	NewGPT Chat Latest (OpenAI)
Input Price prompt tokens per 1M	$30	$5
Completion Price per 1M tokens	$150	$30
Sample Workload Cost 1M input + 500K output	$105	$20
Context Window	1M	400K
Release Date	2026-05-12	2026-05-05

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	GPT Chat Latest	On the standard 1M input plus 500K output workload, GPT Chat Latest is estimated at $20 vs $105 for Claude Opus 4.7 (Fast), saving $85 (81% lower).
High-volume input processing	GPT Chat Latest	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	GPT Chat Latest	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 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.

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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Provider catalogs

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Anthropic catalog

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OpenAI catalog

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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

GPT Chat Latest

GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...