GPT-5 Chat vs Palmyra X5
Palmyra X5 comes out ahead, 48 to 34 on our weighted score, and it is the cheaper option too.
OpenAIGPT-5 Chat
34/100- ECI—
- Price$1.25 / $10.00
- Context400K
- Our pick
Writer
Palmyra X5
48/100- ECI—
- Price$0.60 / $6.00
- Context1M
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Make it a three-way comparison.
Palmyra X5 is our pick
Palmyra X5 is the better all-round choice, scoring 48/100 against GPT-5 Chat (34). It leads on price, inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest pricePalmyra X5Palmyra X5 $1.95 · GPT-5 Chat $3.44 per 1M tokens (3:1 blend)
- Longest contextPalmyra X5Palmyra X5 1,000,000 · GPT-5 Chat 400,000 tokens
- Widest inputsSame inputsGPT-5 Chat: Text, Images · Palmyra X5: Text, Images
- Self-hostingNo open weightsBoth are available only through APIs
| Measure | Weight | GPT-5 Chat | Palmyra X5 |
|---|---|---|---|
| Price | 50% | 24 | 36 |
| Inputs & features | 30% | 45 | 60 |
| Context window | 20% | 44 | 60 |
| Overall | 100% | 34/100 | 48/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | GPT-5 ChatOpenAI | Palmyra X5Writer |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $1.25 | $0.60 (best) |
| Output | $10.00 | $6.00 (best) |
| Cached input | — | — |
| Blended (3:1) | $3.44 | $1.95 (best) |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 2 providers | Median of 1 providers |
| Limits | ||
| Context window | 400,000 tokens | 1,000,000 tokens (best) |
| Max output | 128,000 tokens (best) | 8,192 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | Yes |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| Structured output | Yes | No |
| Availability | ||
| Weights | Proprietary | Proprietary |
| API model ID | — | — |
| API providers | 2 (best) | 1 |
| Released | Aug 7, 2025 | Apr 28, 2025 |
| Knowledge cutoff | Sep 30, 2024 | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- GPT-5 Chat$32.50
- Palmyra X5$18.00
Which should you choose?
Which is better: GPT-5 Chat or Palmyra X5?
Palmyra X5 is the better all-round choice, scoring 48/100 against GPT-5 Chat (34). It leads on price, inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, GPT-5 Chat or Palmyra X5?
Palmyra X5 is cheaper at $0.60 input / $6.00 output per million tokens (median across 1 API provider). GPT-5 Chat costs $1.25 input / $10.00 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $1.95 per million tokens for Palmyra X5 versus $3.44 for GPT-5 Chat (1.8× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. GPT-5 Chat has not been scored yet and Palmyra X5 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for GPT-5 Chat and Palmyra X5 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Note that GPT-5 Chat does not support tool calling, which most coding agents need.
Which has the bigger context window?
Palmyra X5 has the largest context window at 1,000,000 tokens, against 400,000 for GPT-5 Chat. Maximum output per response: GPT-5 Chat up to 128,000, Palmyra X5 up to 8,192 tokens.
Which can read images, PDFs, audio or video?
GPT-5 Chat accepts text and images; Palmyra X5 accepts text and images. They handle the same number of input types.
Are any of these open source?
No. GPT-5 Chat and Palmyra X5 are proprietary and only available through APIs and apps.
Which is newer?
GPT-5 Chat is the newest, released Aug 7, 2025. Palmyra X5 came out Apr 28, 2025. Knowledge cutoff: GPT-5 Chat Sep 30, 2024.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
