API cost decision in 10 seconds

NewGPT Chat Latest vs Claude Opus Latest

Pick Claude Opus Latest 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 Claude Opus Latest when budget and context both matter.

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

Cost-first pickClaude Opus Latest
Context-first pickClaude Opus Latest
Sample savings$2.512.5%
10x traffic gap$25

Claude Opus Latest is cheaper on the standard workload and also has the larger context window. 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 Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT Chat LatestClaude Opus Latest
Input-heavy / RAG5M input + 500K outputClaude Opus Latest$40$37.5
Balanced workload1M input + 1M outputClaude Opus Latest$35$30
Output-heavy chatbot1M input + 5M outputClaude Opus Latest$155$130
Cheaper input Tie $5 vs $5 / 1M

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

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

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

Larger context Claude Opus Latest 400K vs 1M

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

Sample workload Claude Opus Latest $20 vs $17.5

Claude Opus Latest 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.
GPT Chat Latest Calculating… Estimated API cost
Claude Opus 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 Latest has the lower output price; Claude Opus Latest offers the larger context window. For the 1M input plus 500K output sample, Claude Opus Latest is cheaper for the standard workload.

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

Best Fit

Choose GPT Chat Latest when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Choose Claude Opus Latest when you care most about lower output-token price, and larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Claude Opus Latest is estimated at $17.5 vs $20 for GPT Chat Latest, saving $2.5 (12.5% lower).
  • Claude Opus Latest 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 Latest is $5 cheaper per 1M output tokens (16.7% lower; 1.2x difference).
  • Claude Opus Latest has 600K more context (2.5x larger).
Head-to-Head Specs
FeatureNewGPT Chat Latest
(OpenAI)		Claude Opus Latest
(Anthropic)
Input Price
prompt tokens per 1M		$5$5
Completion Price
per 1M tokens		$30$25
Sample Workload Cost
1M input + 500K output		$20$17.5
Context Window400K1M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionClaude Opus LatestOn the standard 1M input plus 500K output workload, Claude Opus Latest is estimated at $17.5 vs $20 for GPT Chat Latest, saving $2.5 (12.5% lower).
High-volume input processingTieLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsClaude Opus LatestLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workClaude Opus LatestA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace GPT Chat Latest when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT Chat Latest when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT Chat Latest when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT Chat Latest when lower sample workload cost matters most: $0.13.
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.

Open cheapest models

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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OpenAI catalog

Review all tracked OpenAI 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.

Open Anthropic models
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...

Claude Opus Latest

This model always redirects to the latest model in the Claude Opus family.