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Palmyra X4

writer·writer/palmyra-x4·Deprecated·Closed·palmyra series
Enterprise language model for workflow automation, coding, data analysis, and tool use

Specs & pricing

Input / output per 1M tokens
Official price
—
Lowest paid·Amazon BedrockCloud
$2.50 / $10.00
Blended $4.38 · 1× spread
Context
128,000
Output limit
32,000
Knowledge cutoff
—
Released / updated
2024-10-09 / 2025-04-28
Capabilities
✓ Reasoning✓ Tool useStructured output✓ TemperatureAttachments
⚠ Providers report capability flags inconsistently
Modalities
Text

Palmyra X4 by writer is offered by 3 providers on this page. No official API price is listed for it; the prices below come from third-party channels. The lowest paid channel is Amazon Bedrock at $2.50 / $10.00 per 1M.

The context window is 128,000 tokens at the reference host, but hosts report different limits, from 122,880 to 128,000, so the usable window depends on the provider you pick. It supports reasoning and tool use. Providers report the capability flags inconsistently, so verify a specific feature against the host you plan to use.

Available at 3 providers3 with public prices

  • ProviderInput / Output
  • Amazon BedrockCloud
    us.writer.palmyra-x4-v1:0
    $2.50 / $10.00
    Context 122,880 ⚠Output limit 8,192deprecated
  • Amazon BedrockCloud
    writer.palmyra-x4-v1:0
    $2.50 / $10.00
    Context 122,880 ⚠Output limit 8,192deprecated
  • Merge GatewayGateway
    $2.50 / $10.00
    Context 128,000Output limit 32,000
ProviderTierInputOutputCache readCache writeContextOutput limitStatus
Amazon Bedrock
us.writer.palmyra-x4-v1:0
Cloud$2.50$10.00——122,880 ⚠8,192deprecated
Amazon Bedrock
writer.palmyra-x4-v1:0
Cloud$2.50$10.00——122,880 ⚠8,192deprecated
Merge GatewayGateway$2.50$10.00——128,00032,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

Upstream provides no control info

2 / 3 providers expose no reasoning control (reasoning_options: []).

Your usage cost

1Amazon Bedrock$1,000.00
2Amazon Bedrock$1,000.00
3Merge Gateway$1,000.00
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list —Output list —Min blended $4.38

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-09). Each future sync adds a point, and once accumulated a line is drawn here.

Data partly from models.dev (MIT)