Codestral 25.08 vs GPT Realtime
Codestral 25.08 and GPT Realtime are both current production-tier models. Codestral 25.08 is meaningfully cheaper at $0.30 / $0.90 per 1M. Codestral 25.08 leads on coding, long-context retrieval. GPT Realtime leads on reasoning, general knowledge, instruction following.
Specs side by side
| Metric | Mistral AI Codestral 25.08 | OpenAI GPT Realtime |
|---|---|---|
| Input price (per 1M) | $0.3 | $4 |
| Output price (per 1M) | $0.9 | $16 |
| Context window | 256k tokens | 128k tokens |
| Speed tier | fast | ultra |
| Open weights | Yes | No |
| EU region | Yes | Yes |
| Free tier | La Plateforme | No |
| Prompt caching | No | No |
| Vision input | No | No |
| Extended thinking | No | No |
When to choose each
Choose Codestral 25.08 if…
- Cost is a priority ($0.30 / $0.90 per 1M vs $4 / $16 per 1M)
- You need 256k context (2× more than GPT Realtime)
- You need open weights for self-hosting or fine-tuning
- HIPAA eligibility is required
- You want a free tier for prototyping
- Coding is central to your workload
- Long-context retrieval is central to your workload
Choose GPT Realtime if…
- You need realtime speech-to-speech
- Reasoning is central to your workload
- General knowledge is central to your workload
Benchmark delta
Codestral 25.08 leads on
- Coding
- Long-context retrieval
GPT Realtime leads on
- Reasoning
- General knowledge
- Instruction following
- Multilingual
- Tool use
FAQ — Codestral 25.08 vs GPT Realtime
Codestral 25.08 vs GPT Realtime — which is better?
Codestral 25.08 and GPT Realtime are both current production-tier models. Codestral 25.08 is meaningfully cheaper at $0.30 / $0.90 per 1M. Codestral 25.08 leads on coding, long-context retrieval. GPT Realtime leads on reasoning, general knowledge, instruction following. The right pick depends on your use case — see "When to choose each" above for a data-driven decision.
How does Codestral 25.08 pricing compare to GPT Realtime?
Codestral 25.08 costs $0.30 / $0.90 per 1M vs GPT Realtime at $4 / $16 per 1M. Codestral 25.08 is cheaper on output tokens by roughly 1678%.
Does Codestral 25.08 or GPT Realtime have the bigger context window?
Codestral 25.08 has a 256k-token context window — 2× the 128k context of GPT Realtime. Enough for long reports and multi-document analysis.
Is there a free tier for Codestral 25.08 or GPT Realtime?
Codestral 25.08: yes — Free tier for prototyping with rate limits. GPT Realtime: no — Paid-only.
Which is better for coding — Codestral 25.08 or GPT Realtime?
Codestral 25.08 leads on coding benchmarks (Codestral 25.08: 90/100, GPT Realtime: 78/100). For production coding agents also weigh tool-use performance — Codestral 25.08 scores 78, GPT Realtime scores 84.