API cost decision in 10 seconds

GPT-5.4 Pro vs Palmyra X5

Pick Palmyra X5 for lower cost; pick GPT-5.4 Pro only if the larger context window matters more.

Page updated: 2026-05-26T10:03:26Z Data confirmed: 2026-05-26T13:08:02Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Palmyra X5 for lower cost; pick GPT-5.4 Pro only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Palmyra X5 is estimated at $3.6 vs $120 for GPT-5.4 Pro, saving $116.4 (97% lower).

Cost-first pickPalmyra X5

Context-first pickGPT-5.4 Pro

Sample savings$116.497%

10x traffic gap$1164

GPT-5.4 Pro has more context, but Palmyra X5 saves $116.4 on the standard workload. At 10x that traffic, the same price gap is about $1164. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Palmyra X5 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	GPT-5.4 Pro	Palmyra X5
Input-heavy / RAG	5M input + 500K output	Palmyra X5	$240	$6
Balanced workload	1M input + 1M output	Palmyra X5	$210	$6.6
Output-heavy chatbot	1M input + 5M output	Palmyra X5	$930	$30.6

Cheaper input Palmyra X5 $30 vs $0.6 / 1M

Palmyra X5 is $29.4 cheaper per 1M input tokens (98% lower; 50x difference).

Cheaper output Palmyra X5 $180 vs $6 / 1M

Palmyra X5 is $174 cheaper per 1M output tokens (96.7% lower; 30x difference).

Larger context GPT-5.4 Pro 1.05M vs 1.04M

GPT-5.4 Pro has 10K more context (1.01x larger).

Sample workload Palmyra X5 $120 vs $3.6

Palmyra X5 is $116.4 cheaper on the standard workload (97% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

GPT-5.4 Pro Calculating… Estimated API cost

Palmyra X5 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

Palmyra X5 has the lower input price; Palmyra X5 has the lower output price; GPT-5.4 Pro offers the larger context window. For the 1M input plus 500K output sample, Palmyra X5 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $120 for GPT-5.4 Pro and $3.6 for Palmyra X5.

Best Fit

Choose GPT-5.4 Pro when you care most about larger context window.

Choose Palmyra X5 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, Palmyra X5 is estimated at $3.6 vs $120 for GPT-5.4 Pro, saving $116.4 (97% lower).
Palmyra X5 is $116.4 cheaper on the standard workload (97% lower).
Palmyra X5 is $29.4 cheaper per 1M input tokens (98% lower; 50x difference).
Palmyra X5 is $174 cheaper per 1M output tokens (96.7% lower; 30x difference).
GPT-5.4 Pro has 10K more context (1.01x larger).

Head-to-Head Specs

Feature	GPT-5.4 Pro (OpenAI)	Palmyra X5 (Writer)
Input Price prompt tokens per 1M	$30	$0.6
Completion Price per 1M tokens	$180	$6
Sample Workload Cost 1M input + 500K output	$120	$3.6
Context Window	1.05M	1.04M
Release Date	2026-03-05	2026-01-21

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Palmyra X5	On the standard 1M input plus 500K output workload, Palmyra X5 is estimated at $3.6 vs $120 for GPT-5.4 Pro, saving $116.4 (97% lower).
High-volume input processing	Palmyra X5	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Palmyra X5	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	GPT-5.4 Pro	A 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-5.4 Pro when lower sample workload cost matters most: $0.
gpt-oss-20b (free) can replace GPT-5.4 Pro when lower sample workload cost matters most: $0.
gpt-oss-20b can replace GPT-5.4 Pro when lower sample workload cost matters most: $0.1.
gpt-oss-120b can replace GPT-5.4 Pro 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.

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OpenAI catalog

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Writer catalog

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GPT-5.4 Pro

GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...

Palmyra X5

Palmyra X5 is Writer's most advanced model, purpose-built for building and scaling AI agents across the enterprise. It delivers industry-leading speed and efficiency on context windows up to 1 million...