Claude Opus 4.8 Coding vs DeepSeek V4 Flash 0731

One key routes both. Starter credit covers your first DeepSeek V4 Flash 0731 requests, while Claude Opus 4.8 Coding runs on your own provider key. Switch by changing the model name.

Side by side:

Claude Opus 4.8 Coding compared with DeepSeek: DeepSeek V4 Flash 0731
Attribute	Claude Opus 4.8 Coding `anthropic/claude-opus-4.8-coding`	DeepSeek V4 Flash 0731 `deepseek/deepseek-v4-flash-0731`
Price, 1M in + out	$31.65 Your provider key	$0.14 Engy, cheapest route
Cached input	Not published	$0.01/1M to $0.098608/1M
Context window	1M 1,000,000 tokens	1.05M 1,048,576 tokens
First token, p50	Measuring	1.0 s via Mancer
Provider routes	0	24 with failover
Privacy	Varies by provider	Confidential E2EE and zero retention route
Recent route uptime range	not enough data	0.00% to 100.00%
Publisher	Anthropic	DeepSeek
Modes	chat messages	chat
More detail	Overview	Overview Pricing Providers

Price adds one million input and one million output tokens on the cheapest route. Prices and speed change: see the monthly reports and run a small eval before you choose a default.

Test both with your agent

Paste this into Claude Code, Cursor or any coding agent.

Compare Claude Opus 4.8 Coding and DeepSeek V4 Flash 0731 in this project through TrustedRouter.

1. Read https://trustedrouter.com/docs/llms.txt
2. Point the OpenAI-compatible client at
   https://api.trustedrouter.com/v1 and read the key from
   TRUSTEDROUTER_API_KEY.
3. Run our eval prompts on anthropic/claude-opus-4.8-coding, then on deepseek/deepseek-v4-flash-0731.
4. Show me cost, latency and quality side by side before changing the default.

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.trustedrouter.com/v1",
    api_key=os.environ["TRUSTEDROUTER_API_KEY"],
)
for model in ("anthropic/claude-opus-4.8-coding", "deepseek/deepseek-v4-flash-0731"):
    response = client.chat.completions.create(
        model=model,
        messages=[{"role": "user", "content": "What is the capital of France?"}],
    )
    print(model, response.choices[0].message.content)

for model in anthropic/claude-opus-4.8-coding deepseek/deepseek-v4-flash-0731; do
  curl https://api.trustedrouter.com/v1/chat/completions \
    -H "Authorization: Bearer $TRUSTEDROUTER_API_KEY" \
    -H "Content-Type: application/json" \
    -d "{\"model\": \"$model\", \"messages\": [{\"role\": \"user\", \"content\": \"What is the capital of France?\"}]}"
done

Your agent will need an API key.

Questions

Which should I use, Claude Opus 4.8 Coding or DeepSeek: DeepSeek V4 Flash 0731?

DeepSeek V4 Flash 0731 has more Credits provider routes and the larger context window. A published Credits price comparison is not available for both models. There is not enough recent probe data to compare speed.

Is Claude Opus 4.8 Coding or DeepSeek: DeepSeek V4 Flash 0731 cheaper?

The current cheapest TrustedRouter route is $31.65/1M for Claude Opus 4.8 Coding and $0.142425/1M for DeepSeek: DeepSeek V4 Flash 0731. The comparison uses current catalog prices and updates as provider pricing changes.

Is Claude Opus 4.8 Coding or DeepSeek: DeepSeek V4 Flash 0731 faster?

Current measured p50 time to first token is not enough data for Claude Opus 4.8 Coding and 1018 ms for DeepSeek: DeepSeek V4 Flash 0731. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Claude Opus 4.8 Coding and DeepSeek: DeepSeek V4 Flash 0731 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between anthropic/claude-opus-4.8-coding and deepseek/deepseek-v4-flash-0731. This makes side-by-side evals possible without maintaining two provider integrations.

More comparisons

All comparisons

Try Claude Opus 4.8 Coding and DeepSeek V4 Flash 0731 with one key.

TrustedRouter is useful when you know the model you want, but still need provider rollover, budget limits, usage records, and a prompt path you can verify.

One key routes both. Starter credit covers your first DeepSeek V4 Flash 0731 requests, while Claude Opus 4.8 Coding runs on your own provider key. Switch by changing the model name.