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OpenKey

Morph V3 Large

MorphReleased Jul 7, 2025

Morph's high-accuracy apply model for complex code edits. ~4,500 tokens/sec with 98% accuracy for precise code transformations. The model requires the prompt to be in the following format: <instruction>{instruction}</instruction> <code>{initial_code}</code>...

Try in playground
Context window
262K tokens
Max output
131K tokens
Input
text
Output
text
Tokenizer
Other
Released
Jul 7, 2025

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$0.900$0.027$0.927
Output$1.90$0.057$1.96

Supported parameters

  • logprobs
  • max_tokens
  • response_format
  • stop
  • structured_outputs
  • temperature
  • top_logprobs

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model morph/morph-v3-large.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "morph/morph-v3-large",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="morph/morph-v3-large",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.openkey.ai/v1",
  apiKey: process.env.OPENKEY_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "morph/morph-v3-large",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does Morph V3 Large cost via API?
Through OpenKey, Morph V3 Large costs $0.927 per 1M input tokens and $1.96 per 1M output tokens. That is the provider price ($0.900 / $1.90) plus a flat 3% fee — nothing else.
What is Morph V3 Large's context window?
Morph V3 Large accepts up to 262K tokens of context and returns up to 131K tokens per request.
Is Morph V3 Large OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "morph/morph-v3-large" using any OpenAI SDK — only the base URL and API key change.
What inputs does Morph V3 Large support?
Morph V3 Large accepts text input and produces text output.

More from Morph

All Morph models →