Claude Opus 4.8 vs GPT-5.6 Sol
GPT-5.6 Sol is about 1.3× cheaper than Claude Opus 4.8 on blended token cost ($8 vs $10 per 1M). Claude Opus 4.8 (Anthropic) is $10/1M blended, 1M context. GPT-5.6 Sol (OpenAI) is $8/1M blended, 1.1M context.
Last verified: 26 Sep 2026 · prices from official provider documentation
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| Spec | Claude Opus 4.8 | GPT-5.6 Sol |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Status | GA | GA |
| Input $/1M | $5 | $4 ◎ |
| Output $/1M | $25 | $20 ◎ |
| Blended $/1M | $10 | $8 ◎ |
| Context | 1M | 1.1M ◎ |
| Max output | 128K | 128K |
| Cutoff | 2026-01 | 2026-02-16 |
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- DeprecatingGoogle re-pointed the Gemini 2.5 TTS migration path past the 3.1 preview and onto the new GA 3.8 TTS models
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