# Palmyra X6

Writer, released 2026-08-13

**Verdict: conditional.** Palmyra X6 is Writer's flagship agentic model for marketing and revenue workflows — post-trained on Z.ai's open-weight GLM-5.2 at $2/$8 per 1M tokens, a fraction of the frontier rate. Every headline number is Writer-run, and the GLM-5.2 provenance is a real procurement question. Adopt it inside Writer for cost-sensitive GTM agent work; look elsewhere for independently benchmarked general capability. Last verified 2026-08-15.

## Pricing

- Input: $2 / 1M
- Output: $8 / 1M
- Context: 1M context, 8K max output

## Strengths

- Cost-sensitive enterprise GTM agents — $2/$8 per 1M tokens undercuts Claude Opus 4.8, GPT-5.5, and Gemini 3.1 on Writer's own launch comparison
- Marketing and revenue workflows — top internal scores in brand voice (0.92), grounding/retrieval (0.91), and content generation (0.88)
- Long-horizon unattended execution — sustains a single goal up to 8 hours; 82 tokens/sec, 26-second median finished task
- 1M-token context for connector-driven work across CRM, Slack, documents, and Knowledge Graphs
- Bias-averse regulated enterprises — pre-registered model-risk eval (19,674 judged responses); best ModelSlant both-sides rate (80%) and FORTRESS +8.6 over the base
- Independently benchmarked general capability — X6 publishes no public benchmarks; all scores are Writer's internal eval (n=22, baseline frozen 2026-06-07)
- Deployments outside Writer's platform — no Bedrock model ID at launch (X5/X4 have one); tuned to co-evolve with the Writer Agent harness
- Buyers with a hard block on Chinese open-weight foundations — post-trained on Z.ai's GLM-5.2 (MIT license), a supply-chain question for some US enterprises

## Benchmarks

- Writer internal eval — avg of 9 capabilities (in WRITER Agent): 0.87 / 1.00 (https://dev.writer.com/home/models)
- FinanceBench (Writer-run, raw model): 0.855 (https://dev.writer.com/home/models)
- Finance Agent (Writer-run, raw model): 0.753 (https://dev.writer.com/home/models)
- FinanceQA (Writer-run, raw model): 0.673 (https://dev.writer.com/home/models)

## Sources

- [Writer — Palmyra X6 release press release (official blog)](https://writer.com/blog/palmyra-x6-major-harness-release/)
- [SiliconANGLE — Writer launches Palmyra X6 flagship model](https://siliconangle.com/2026/08/13/writer-launches-major-agentic-ai-improvements-palmyra-x6-flagship-model/)
- [VentureBeat — Writer says Palmyra X6 cuts AI agent costs by 52%](https://venturebeat.com/orchestration/writer-says-its-new-palmyra-x6-model-cuts-ai-agent-costs-by-52-as-token-spending-surges)
- [Writer AI Studio docs — Choose a model (Palmyra X6 specs/pricing)](https://dev.writer.com/home/models)

Canonical: https://neomanex.com/models/palmyra-x6