API cost decision in 10 seconds

🔥Claude Opus 4.6 vs OpenAI GPT Latest

Pick Claude Opus 4.6 for lower cost; pick OpenAI GPT Latest only if the larger context window matters more.

Page updated: 2026-05-26T12:03:47Z Data confirmed: 2026-05-26T14:08:03Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Claude Opus 4.6 for lower cost; pick OpenAI GPT Latest only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Claude Opus 4.6 is estimated at $17.5 vs $20 for OpenAI GPT Latest, saving $2.5 (12.5% lower).

Cost-first pickClaude Opus 4.6

Context-first pickOpenAI GPT Latest

Sample savings$2.512.5%

10x traffic gap$25

OpenAI GPT Latest has more context, but Claude Opus 4.6 saves $2.5 on the standard workload. At 10x that traffic, the same price gap is about $25. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Claude Opus 4.6 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Claude Opus 4.6	OpenAI GPT Latest
Input-heavy / RAG	5M input + 500K output	Claude Opus 4.6	$37.5	$40
Balanced workload	1M input + 1M output	Claude Opus 4.6	$30	$35
Output-heavy chatbot	1M input + 5M output	Claude Opus 4.6	$130	$155

Cheaper input Tie $5 vs $5 / 1M

Both models report the same input price at $5 per 1M tokens.

Cheaper output Claude Opus 4.6 $25 vs $30 / 1M

Claude Opus 4.6 is $5 cheaper per 1M output tokens (16.7% lower; 1.2x difference).

Larger context OpenAI GPT Latest 1M vs 1.05M

OpenAI GPT Latest has 50K more context (1.05x larger).

Sample workload Claude Opus 4.6 $17.5 vs $20

Claude Opus 4.6 is $2.5 cheaper on the standard workload (12.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Claude Opus 4.6 Calculating… Estimated API cost

OpenAI GPT 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

both models tie on input price; Claude Opus 4.6 has the lower output price; OpenAI GPT Latest offers the larger context window. For the 1M input plus 500K output sample, Claude Opus 4.6 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $17.5 for Claude Opus 4.6 and $20 for OpenAI GPT Latest.

Best Fit

Choose Claude Opus 4.6 when you care most about lower output-token price.

Choose OpenAI GPT Latest when you care most about larger context window.

Decision Notes

On the standard 1M input plus 500K output workload, Claude Opus 4.6 is estimated at $17.5 vs $20 for OpenAI GPT Latest, saving $2.5 (12.5% lower).
Claude Opus 4.6 is $2.5 cheaper on the standard workload (12.5% lower).
Both models report the same input price at $5 per 1M tokens.
Claude Opus 4.6 is $5 cheaper per 1M output tokens (16.7% lower; 1.2x difference).
OpenAI GPT Latest has 50K more context (1.05x larger).

Head-to-Head Specs

Feature	🔥Claude Opus 4.6 (Anthropic)	OpenAI GPT Latest (OpenAI)
Input Price prompt tokens per 1M	$5	$5
Completion Price per 1M tokens	$25	$30
Sample Workload Cost 1M input + 500K output	$17.5	$20
Context Window	1M	1.05M
Release Date	2026-02-04	2026-04-27
Popularity	#18

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Claude Opus 4.6	On the standard 1M input plus 500K output workload, Claude Opus 4.6 is estimated at $17.5 vs $20 for OpenAI GPT Latest, saving $2.5 (12.5% lower).
High-volume input processing	Tie	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Claude Opus 4.6	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	OpenAI GPT Latest	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 4.6 when lower sample workload cost matters most: $0.88.
Claude 3.5 Haiku can replace Claude Opus 4.6 when lower sample workload cost matters most: $2.8.
Anthropic Claude Haiku Latest can replace Claude Opus 4.6 when lower sample workload cost matters most: $3.5.
Claude Haiku 4.5 can replace Claude Opus 4.6 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.

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

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Anthropic catalog

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OpenAI catalog

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Claude Opus 4.6

Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...

OpenAI GPT Latest

This model always redirects to the latest model in the OpenAI GPT family.