Chatbots · Head-to-head
Claude Haiku 5.5 vs GPT-5.6 Sol
Claude Haiku 5.5 (paid, AI Score 9.2/10) vs GPT-5.6 Sol (paid, AI Score 9.1/10). Side-by-side pricing, features, pros and cons, and which to pick.
The verdict
Pick GPT-5.6 Sol if…
- →your primary use case is development and agentic-workflow teams evaluating a frontier model family they can route by task difficulty and token cost.
- →you need: development, agents
Side-by-side specs
| Spec | Claude Haiku 5.5 | GPT-5.6 Sol |
|---|---|---|
| Category | Chatbots | Chatbots |
| Pricing model | paid | paid |
| Headline pricing | $0.10/$0.50 per M tokens (≤100k prompts); higher rates for longer prompts | API usage-based: Sol $5/$30, Terra $2.50/$15, Luna $1/$6 per 1M tokens |
| Free tier | — | — |
| AI Score | 9.2/10 | 9.1/10 |
| Best for | — | Development and agentic-workflow teams evaluating a frontier model family they can route by task difficulty and token cost. |
| Editor's pick | ✓ Yes | ✓ Yes |
| Use cases | — | development agents |
| Date added | 2026-10-08 | 2026-06-27 |
Pros and cons
Claude Haiku 5.5
Chatbots · paid
Pros
- ✓List pricing of $0.10/$0.50 per M tokens for ≤100k prompts makes high-volume Claude workloads far cheaper than prior Haiku tiers
- ✓Strong fit for summarization, classification, routing, and sub-agent steps inside larger Claude systems
- ✓Prompt cache reads at $0.01 per M tokens reduce cost when system prompts and tool schemas are reused
- ✓Ships across Claude Platform, AWS Bedrock, Google Cloud, and Microsoft Azure
Cons
- ×Not the right default for deep multi-step reasoning—larger Claude models still handle hard analysis better
- ×Longer prompts jump to $0.50/$2.50 per M tokens, so cost control depends on keeping context short
- ×API/model-first product: there is no distinct Haiku-only consumer app beyond Claude’s broader surfaces
- ×Teams already locked into another vendor’s small-model stack may face migration and evaluation overhead
GPT-5.6 Sol
Chatbots · paid
Pros
- ✓Three-tier family lets you match model cost to task difficulty instead of overpaying
- ✓Claimed state-of-the-art on Terminal-Bench, a meaningful real-world coding/agentic benchmark
- ✓Luna tier ($1/$6 per 1M tokens) is genuinely cheap for a current-generation model
- ✓Strong focus on agentic, long-horizon workflows rather than just chat
Cons
- ×Launched in limited preview — not broadly available, so you can't reliably build production on it yet
- ×Sol's $5/$30 pricing is premium; costs add up fast on token-heavy agentic loops
- ×Cybersecurity/dual-use framing and gov coordination signal tighter usage gating than a normal release
- ×Benchmark claims are vendor-reported at launch; independent verification is still pending
Related comparisons
Updated 2026-10-08. Spec data sourced from official product pages and tracked in our public directory at /tools.