OpenAI vs Claude vs Gemini Same Prompt Cost
Compare openai vs claude vs gemini same prompt cost across three providers for identical input/output tokens — per request, daily, and monthly — with optional Claude prompt-cache hits.
1 Models to compare
2 Same prompt tokens
3 Volume
4 Cost comparison
| Provider | Model | Input / MTok | Output / MTok | Cache hit / MTok |
|---|
What an openai vs claude vs gemini same prompt cost comparison is for
Teams often pick a default model from habit. An openai vs claude vs gemini same prompt cost calculator holds tokens constant so you see pure list-price differences — useful before you bake a provider into a Shopify support bot, catalog enrichment pipeline, or agent loop. Enter the same input/output tokens and request volume; the tool highlights the cheapest of the three selections and monthly savings versus the costliest.
- OpenAI — GPT-4o mini / GPT-4o / GPT-4.1 mini / o3-mini style tiers for speed vs reasoning.
- Claude — Haiku / Sonnet / Opus with optional prompt-cache hit % (cache rates apply to Claude only here).
- Gemini — Flash vs Pro tiers for high-volume vs harder reasoning workloads.
- Same prompt — identical token assumptions so the delta is price (and later your eval quality), not unequal context.
FAQ
How do I calculate openai vs claude vs gemini same prompt cost?
Fix input and output tokens. For each model: cost/request ≈ (input ÷ 1,000,000 × input $/MTok) + (output ÷ 1,000,000 × output $/MTok). For Claude, blend input between base and cache-hit rates by cache hit %. Multiply by requests/day and days/month. Compare the three monthly totals — that is your openai vs claude vs gemini same prompt cost snapshot.
Why is GPT-4o mini often cheapest at defaults?
At Sep 2026 approximate list rates, GPT-4o mini’s input/output $/MTok is lower than Claude Haiku 4.5 and Gemini 2.5 Flash for many mid-size prompts. Quality and latency still matter — use evals, not price alone.
Does prompt cache apply to OpenAI and Gemini here?
The cache hit % field applies only to Claude models that have a cache-hit rate in the table. OpenAI and Gemini selections ignore it (shown as N/A) so you do not invent unsupported discounts.
Are Sep 2026 rates guaranteed?
No. Providers update list prices often. Always confirm on official OpenAI, Anthropic, and Google AI pricing pages before budgeting. This tool is illustrative, not billing advice.
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